diff --git a/README.md b/README.md
index 1edf224..39a39b8 100644
--- a/README.md
+++ b/README.md
@@ -1,14 +1,14 @@
-# cl-openapi
+# io.github.cl-sdk.openapi
 
 OpenAPI 3.0 Specification parser for Common Lisp.
 
-`cl-openapi` parses a JSON-encoded OpenAPI 3.0 document into a tree of
+`io.github.cl-sdk.openapi` parses a JSON-encoded OpenAPI 3.0 document into a tree of
 typed CLOS objects, giving you structured, accessor-based access to every
 field defined by the specification.
 
 ## Installation
 
-`cl-openapi` is not yet in the Quicklisp distribution.  Add it to your
+`io.github.cl-sdk.openapi` is not yet in the Quicklisp distribution.  Add it to your
 project with [qlot](https://github.com/fukamachi/qlot):
 
 ```
@@ -19,28 +19,28 @@ github cl-openapi cl-sdk/cl-openapi :branch main
 Then run `qlot install` and load the system:
 
 ```lisp
-(ql:quickload :cl-openapi)
+(ql:quickload :io.github.cl-sdk.openapi)
 ```
 
 ## Usage
 
 ### Parsing a document
 
-The single public entry point is `cl-openapi:parse`.  It accepts a JSON
+The single public entry point is `io.github.cl-sdk.openapi:parse`.  It accepts a JSON
 string, a character stream, or a binary (octet) stream and returns an
 `openapi-document` instance.
 
 ```lisp
 ;; From a string
 (defvar *doc*
-  (cl-openapi:parse
+  (io.github.cl-sdk.openapi:parse
    "{\"openapi\":\"3.0.0\",
      \"info\":{\"title\":\"Pet Store\",\"version\":\"1.0.0\"},
      \"paths\":{}}"))
 
 ;; From a file
 (with-open-file (stream "/path/to/openapi.json")
-  (defvar *doc* (cl-openapi:parse stream)))
+  (defvar *doc* (io.github.cl-sdk.openapi:parse stream)))
 ```
 
 ### Accessing fields
@@ -48,25 +48,25 @@ string, a character stream, or a binary (octet) stream and returns an
 Every field is exposed through a typed accessor named `<class>-<field>`:
 
 ```lisp
-(cl-openapi:openapi-version *doc*)          ; => "3.0.0"
+(io.github.cl-sdk.openapi:openapi-version *doc*)          ; => "3.0.0"
 
-(let ((info (cl-openapi:openapi-info *doc*)))
-  (cl-openapi:info-title info)              ; => "Pet Store"
-  (cl-openapi:info-version info))           ; => "1.0.0"
+(let ((info (io.github.cl-sdk.openapi:openapi-info *doc*)))
+  (io.github.cl-sdk.openapi:info-title info)              ; => "Pet Store"
+  (io.github.cl-sdk.openapi:info-version info))           ; => "1.0.0"
 
 ;; Paths is a hash-table keyed by path string
-(let ((item (gethash "/pets" (cl-openapi:openapi-paths *doc*))))
-  (cl-openapi:operation-id
-    (cl-openapi:path-item-get item)))       ; => "listPets"
+(let ((item (gethash "/pets" (io.github.cl-sdk.openapi:openapi-paths *doc*))))
+  (io.github.cl-sdk.openapi:operation-id
+    (io.github.cl-sdk.openapi:path-item-get item)))       ; => "listPets"
 ```
 
 Optional fields that are absent from the source document are left **unbound**
 on their slot.  Use `slot-boundp` to test for presence before accessing them.
 
 ```lisp
-(let ((info (cl-openapi:openapi-info *doc*)))
-  (when (slot-boundp info 'cl-openapi::description)
-    (cl-openapi:info-description info)))
+(let ((info (io.github.cl-sdk.openapi:openapi-info *doc*)))
+  (when (slot-boundp info 'io.github.cl-sdk.openapi::description)
+    (io.github.cl-sdk.openapi:info-description info)))
 ```
 
 ### `$ref` handling
@@ -76,10 +76,10 @@ either the concrete typed object or a `reference` instance whose single
 accessor is `reference-ref` (the raw `$ref` string).
 
 ```lisp
-(let ((param (aref (cl-openapi:operation-parameters op) 0)))
-  (if (typep param 'cl-openapi:reference)
-      (cl-openapi:reference-ref param)     ; => "#/components/parameters/Limit"
-      (cl-openapi:parameter-name param)))  ; => "limit"
+(let ((param (aref (io.github.cl-sdk.openapi:operation-parameters op) 0)))
+  (if (typep param 'io.github.cl-sdk.openapi:reference)
+      (io.github.cl-sdk.openapi:reference-ref param)     ; => "#/components/parameters/Limit"
+      (io.github.cl-sdk.openapi:parameter-name param)))  ; => "limit"
 ```
 
 ## API Reference
diff --git a/decode.lisp b/decode.lisp
index a92adbf..46c6af7 100644
--- a/decode.lisp
+++ b/decode.lisp
@@ -1,4 +1,4 @@
-(in-package #:cl-openapi)
+(in-package #:io.github.cl-sdk.openapi)
 
 ;;; JSON decoding for OpenAPI objects.
 ;;;
@@ -573,5 +573,5 @@ INPUT may be a JSON string, a character stream, or a binary (octet) stream.
 Binary streams are decoded as UTF-8 via flexi-streams (delegated to cl-json).
 
 Example:
-  (cl-openapi:parse \"{\\\"openapi\\\":\\\"3.0.0\\\",\\\"info\\\":{...},...}\")"
+  (io.github.cl-sdk.openapi:parse \"{\\\"openapi\\\":\\\"3.0.0\\\",\\\"info\\\":{...},...}\")"
   (json:decode-json 'openapi-document (json:parse input)))
diff --git a/cl-openapi.asd b/io.github.cl-sdk.openapi.asd
similarity index 84%
rename from cl-openapi.asd
rename to io.github.cl-sdk.openapi.asd
index c3f6db1..1cd4164 100644
--- a/cl-openapi.asd
+++ b/io.github.cl-sdk.openapi.asd
@@ -1,4 +1,4 @@
-(asdf:defsystem #:cl-openapi
+(asdf:defsystem #:io.github.cl-sdk.openapi
   :description "Open API Specification for Common Lisp."
   :license "Unlicense"
   :version "0.0.1"
diff --git a/cl-openapi.test.asd b/io.github.cl-sdk.openapi.test.asd
similarity index 52%
rename from cl-openapi.test.asd
rename to io.github.cl-sdk.openapi.test.asd
index 9f07524..03c3e29 100644
--- a/cl-openapi.test.asd
+++ b/io.github.cl-sdk.openapi.test.asd
@@ -1,9 +1,9 @@
-(asdf:defsystem #:cl-openapi.test
-  :description "FiveAM test suite for cl-openapi."
+(asdf:defsystem #:io.github.cl-sdk.openapi.test
+  :description "FiveAM test suite for io.github.cl-sdk.openapi."
   :license "Unlicense"
   :version "0.0.1"
   :depends-on (#:fiveam
-               #:cl-openapi)
+               #:io.github.cl-sdk.openapi)
   :pathname "t"
   :serial t
   :components ((:file "package")
diff --git a/package.lisp b/package.lisp
index 1956e19..4c63b6b 100644
--- a/package.lisp
+++ b/package.lisp
@@ -1,4 +1,4 @@
-(defpackage #:cl-openapi
+(defpackage #:io.github.cl-sdk.openapi
   (:use #:cl)
   (:export
    ;; Top-level entry point
@@ -256,4 +256,4 @@
    #:reference
    #:reference-ref))
 
-(in-package :cl-openapi)
+(in-package :io.github.cl-sdk.openapi)
diff --git a/t/cl-openapi-tests.lisp b/t/cl-openapi-tests.lisp
index fc6bff1..062f1a4 100644
--- a/t/cl-openapi-tests.lisp
+++ b/t/cl-openapi-tests.lisp
@@ -1,9 +1,9 @@
-(in-package :cl-openapi.test)
+(in-package :io.github.cl-sdk.openapi.test)
 
-(def-suite cl-openapi-suite
-  :description "Test suite for cl-openapi.")
+(def-suite io.github.cl-sdk.openapi-suite
+  :description "Test suite for io.github.cl-sdk.openapi.")
 
-(in-suite cl-openapi-suite)
+(in-suite io.github.cl-sdk.openapi-suite)
 
 (test sanity
   (is (= 1 1)))
@@ -17,21 +17,21 @@
 ;;; ── parse ───────────────────────────────────────────────────────────────────
 
 (test parse-returns-openapi-document
-  (let ((doc (cl-openapi:parse (minimal-doc))))
-    (is (typep doc 'cl-openapi:openapi-document))))
+  (let ((doc (io.github.cl-sdk.openapi:parse (minimal-doc))))
+    (is (typep doc 'io.github.cl-sdk.openapi:openapi-document))))
 
 (test parse-openapi-version
-  (let ((doc (cl-openapi:parse (minimal-doc))))
-    (is (string= "3.0.0" (cl-openapi:openapi-version doc)))))
+  (let ((doc (io.github.cl-sdk.openapi:parse (minimal-doc))))
+    (is (string= "3.0.0" (io.github.cl-sdk.openapi:openapi-version doc)))))
 
 ;;; ── info ────────────────────────────────────────────────────────────────────
 
 (test parse-info
-  (let* ((doc  (cl-openapi:parse (minimal-doc)))
-         (info (cl-openapi:openapi-info doc)))
-    (is (typep info 'cl-openapi:info))
-    (is (string= "Test API" (cl-openapi:info-title info)))
-    (is (string= "1.0.0"   (cl-openapi:info-version info)))))
+  (let* ((doc  (io.github.cl-sdk.openapi:parse (minimal-doc)))
+         (info (io.github.cl-sdk.openapi:openapi-info doc)))
+    (is (typep info 'io.github.cl-sdk.openapi:info))
+    (is (string= "Test API" (io.github.cl-sdk.openapi:info-title info)))
+    (is (string= "1.0.0"   (io.github.cl-sdk.openapi:info-version info)))))
 
 (test parse-info-contact-and-license
   (let* ((json "{\"openapi\":\"3.0.0\",
@@ -39,12 +39,12 @@
                            \"contact\":{\"name\":\"Alice\",\"email\":\"a@example.com\"},
                            \"license\":{\"name\":\"MIT\",\"url\":\"https://mit-license.org\"}},
                  \"paths\":{}}")
-         (info (cl-openapi:openapi-info (cl-openapi:parse json))))
-    (is (typep (cl-openapi:info-contact info) 'cl-openapi:contact))
-    (is (string= "Alice"          (cl-openapi:contact-name  (cl-openapi:info-contact info))))
-    (is (string= "a@example.com"  (cl-openapi:contact-email (cl-openapi:info-contact info))))
-    (is (typep (cl-openapi:info-license info) 'cl-openapi:license))
-    (is (string= "MIT" (cl-openapi:license-name (cl-openapi:info-license info))))))
+         (info (io.github.cl-sdk.openapi:openapi-info (io.github.cl-sdk.openapi:parse json))))
+    (is (typep (io.github.cl-sdk.openapi:info-contact info) 'io.github.cl-sdk.openapi:contact))
+    (is (string= "Alice"          (io.github.cl-sdk.openapi:contact-name  (io.github.cl-sdk.openapi:info-contact info))))
+    (is (string= "a@example.com"  (io.github.cl-sdk.openapi:contact-email (io.github.cl-sdk.openapi:info-contact info))))
+    (is (typep (io.github.cl-sdk.openapi:info-license info) 'io.github.cl-sdk.openapi:license))
+    (is (string= "MIT" (io.github.cl-sdk.openapi:license-name (io.github.cl-sdk.openapi:info-license info))))))
 
 ;;; ── servers ─────────────────────────────────────────────────────────────────
 
@@ -54,19 +54,19 @@
                  \"servers\":[{\"url\":\"https://api.example.com\",
                                \"description\":\"Production\"}],
                  \"paths\":{}}")
-         (doc     (cl-openapi:parse json))
-         (servers (cl-openapi:openapi-servers doc)))
+         (doc     (io.github.cl-sdk.openapi:parse json))
+         (servers (io.github.cl-sdk.openapi:openapi-servers doc)))
     (is (= 1 (length servers)))
     (let ((srv (aref servers 0)))
-      (is (typep srv 'cl-openapi:server))
-      (is (string= "https://api.example.com" (cl-openapi:server-url srv)))
-      (is (string= "Production"              (cl-openapi:server-description srv))))))
+      (is (typep srv 'io.github.cl-sdk.openapi:server))
+      (is (string= "https://api.example.com" (io.github.cl-sdk.openapi:server-url srv)))
+      (is (string= "Production"              (io.github.cl-sdk.openapi:server-description srv))))))
 
 ;;; ── paths ───────────────────────────────────────────────────────────────────
 
 (test parse-paths-empty
-  (let* ((doc   (cl-openapi:parse (minimal-doc)))
-         (paths (cl-openapi:openapi-paths doc)))
+  (let* ((doc   (io.github.cl-sdk.openapi:parse (minimal-doc)))
+         (paths (io.github.cl-sdk.openapi:openapi-paths doc)))
     (is (hash-table-p paths))
     (is (zerop (hash-table-count paths)))))
 
@@ -76,13 +76,13 @@
                  \"paths\":{\"/pets\":{\"get\":{\"operationId\":\"listPets\",
                                                \"summary\":\"List all pets\",
                                                \"responses\":{\"200\":{\"description\":\"OK\"}}}}}}")
-         (doc      (cl-openapi:parse json))
-         (path     (gethash "/pets" (cl-openapi:openapi-paths doc)))
-         (get-op   (cl-openapi:path-item-get path)))
-    (is (typep path  'cl-openapi:path-item))
-    (is (typep get-op 'cl-openapi:operation))
-    (is (string= "listPets"      (cl-openapi:operation-id get-op)))
-    (is (string= "List all pets" (cl-openapi:operation-summary get-op)))))
+         (doc      (io.github.cl-sdk.openapi:parse json))
+         (path     (gethash "/pets" (io.github.cl-sdk.openapi:openapi-paths doc)))
+         (get-op   (io.github.cl-sdk.openapi:path-item-get path)))
+    (is (typep path  'io.github.cl-sdk.openapi:path-item))
+    (is (typep get-op 'io.github.cl-sdk.openapi:operation))
+    (is (string= "listPets"      (io.github.cl-sdk.openapi:operation-id get-op)))
+    (is (string= "List all pets" (io.github.cl-sdk.openapi:operation-summary get-op)))))
 
 (test parse-operation-parameters
   (let* ((json "{\"openapi\":\"3.0.0\",
@@ -92,16 +92,16 @@
                    \"parameters\":[{\"name\":\"id\",\"in\":\"path\",\"required\":true,
                                     \"schema\":{\"type\":\"integer\"}}],
                    \"responses\":{\"200\":{\"description\":\"OK\"}}}}}}")
-         (doc    (cl-openapi:parse json))
-         (op     (cl-openapi:path-item-get
-                  (gethash "/pets/{id}" (cl-openapi:openapi-paths doc))))
-         (params (cl-openapi:operation-parameters op))
+         (doc    (io.github.cl-sdk.openapi:parse json))
+         (op     (io.github.cl-sdk.openapi:path-item-get
+                  (gethash "/pets/{id}" (io.github.cl-sdk.openapi:openapi-paths doc))))
+         (params (io.github.cl-sdk.openapi:operation-parameters op))
          (param  (aref params 0)))
     (is (= 1 (length params)))
-    (is (typep param 'cl-openapi:parameter))
-    (is (string= "id"   (cl-openapi:parameter-name param)))
-    (is (string= "path" (cl-openapi:parameter-in   param)))
-    (is (eq t           (cl-openapi:parameter-required param)))))
+    (is (typep param 'io.github.cl-sdk.openapi:parameter))
+    (is (string= "id"   (io.github.cl-sdk.openapi:parameter-name param)))
+    (is (string= "path" (io.github.cl-sdk.openapi:parameter-in   param)))
+    (is (eq t           (io.github.cl-sdk.openapi:parameter-required param)))))
 
 (test parse-operation-request-body
   (let* ((json "{\"openapi\":\"3.0.0\",
@@ -111,18 +111,18 @@
                    \"requestBody\":{\"required\":true,
                                     \"content\":{\"application/json\":{\"schema\":{\"type\":\"object\"}}}},
                    \"responses\":{\"201\":{\"description\":\"Created\"}}}}}}")
-         (doc  (cl-openapi:parse json))
-         (op   (cl-openapi:path-item-post
-                (gethash "/pets" (cl-openapi:openapi-paths doc))))
-         (rb   (cl-openapi:operation-request-body op)))
-    (is (typep rb 'cl-openapi:request-body))
-    (is (eq t (cl-openapi:request-body-required rb)))
-    (is (hash-table-p (cl-openapi:request-body-content rb)))
-    (let ((mt (gethash "application/json" (cl-openapi:request-body-content rb))))
-      (is (typep mt 'cl-openapi:media-type))
-      (let ((schema (cl-openapi:media-type-schema mt)))
-        (is (typep schema 'cl-openapi:schema))
-        (is (string= "object" (cl-openapi:schema-type schema)))))))
+         (doc  (io.github.cl-sdk.openapi:parse json))
+         (op   (io.github.cl-sdk.openapi:path-item-post
+                (gethash "/pets" (io.github.cl-sdk.openapi:openapi-paths doc))))
+         (rb   (io.github.cl-sdk.openapi:operation-request-body op)))
+    (is (typep rb 'io.github.cl-sdk.openapi:request-body))
+    (is (eq t (io.github.cl-sdk.openapi:request-body-required rb)))
+    (is (hash-table-p (io.github.cl-sdk.openapi:request-body-content rb)))
+    (let ((mt (gethash "application/json" (io.github.cl-sdk.openapi:request-body-content rb))))
+      (is (typep mt 'io.github.cl-sdk.openapi:media-type))
+      (let ((schema (io.github.cl-sdk.openapi:media-type-schema mt)))
+        (is (typep schema 'io.github.cl-sdk.openapi:schema))
+        (is (string= "object" (io.github.cl-sdk.openapi:schema-type schema)))))))
 
 ;;; ── schemas ─────────────────────────────────────────────────────────────────
 
@@ -136,16 +136,16 @@
                    \"properties\":{
                      \"id\":{\"type\":\"integer\"},
                      \"name\":{\"type\":\"string\"}}}}}}")
-         (doc      (cl-openapi:parse json))
-         (schemas  (cl-openapi:components-schemas
-                    (cl-openapi:openapi-components doc)))
+         (doc      (io.github.cl-sdk.openapi:parse json))
+         (schemas  (io.github.cl-sdk.openapi:components-schemas
+                    (io.github.cl-sdk.openapi:openapi-components doc)))
          (pet      (gethash "Pet" schemas)))
-    (is (typep pet 'cl-openapi:schema))
-    (is (string= "object" (cl-openapi:schema-type pet)))
-    (is (hash-table-p (cl-openapi:schema-properties pet)))
-    (let ((id-schema (gethash "id" (cl-openapi:schema-properties pet))))
-      (is (typep id-schema 'cl-openapi:schema))
-      (is (string= "integer" (cl-openapi:schema-type id-schema))))))
+    (is (typep pet 'io.github.cl-sdk.openapi:schema))
+    (is (string= "object" (io.github.cl-sdk.openapi:schema-type pet)))
+    (is (hash-table-p (io.github.cl-sdk.openapi:schema-properties pet)))
+    (let ((id-schema (gethash "id" (io.github.cl-sdk.openapi:schema-properties pet))))
+      (is (typep id-schema 'io.github.cl-sdk.openapi:schema))
+      (is (string= "integer" (io.github.cl-sdk.openapi:schema-type id-schema))))))
 
 (test parse-schema-ref
   (let* ((json "{\"openapi\":\"3.0.0\",
@@ -155,15 +155,15 @@
                    \"Pets\":{\"type\":\"array\",
                              \"items\":{\"$ref\":\"#/components/schemas/Pet\"}},
                    \"Pet\":{\"type\":\"object\"}}}}")
-         (doc     (cl-openapi:parse json))
-         (schemas (cl-openapi:components-schemas
-                   (cl-openapi:openapi-components doc)))
+         (doc     (io.github.cl-sdk.openapi:parse json))
+         (schemas (io.github.cl-sdk.openapi:components-schemas
+                   (io.github.cl-sdk.openapi:openapi-components doc)))
          (pets    (gethash "Pets" schemas))
-         (items   (cl-openapi:schema-items pets)))
-    (is (typep pets  'cl-openapi:schema))
-    (is (string= "array" (cl-openapi:schema-type pets)))
-    (is (typep items 'cl-openapi:reference))
-    (is (string= "#/components/schemas/Pet" (cl-openapi:reference-ref items)))))
+         (items   (io.github.cl-sdk.openapi:schema-items pets)))
+    (is (typep pets  'io.github.cl-sdk.openapi:schema))
+    (is (string= "array" (io.github.cl-sdk.openapi:schema-type pets)))
+    (is (typep items 'io.github.cl-sdk.openapi:reference))
+    (is (string= "#/components/schemas/Pet" (io.github.cl-sdk.openapi:reference-ref items)))))
 
 (test parse-schema-composition
   (let* ((json "{\"openapi\":\"3.0.0\",
@@ -175,14 +175,14 @@
                      {\"$ref\":\"#/components/schemas/Other\"}
                    ]},
                    \"Other\":{\"type\":\"object\"}}}}")
-         (doc      (cl-openapi:parse json))
-         (schemas  (cl-openapi:components-schemas
-                    (cl-openapi:openapi-components doc)))
+         (doc      (io.github.cl-sdk.openapi:parse json))
+         (schemas  (io.github.cl-sdk.openapi:components-schemas
+                    (io.github.cl-sdk.openapi:openapi-components doc)))
          (combined (gethash "Combined" schemas))
-         (all-of   (cl-openapi:schema-all-of combined)))
+         (all-of   (io.github.cl-sdk.openapi:schema-all-of combined)))
     (is (= 2 (length all-of)))
-    (is (typep (aref all-of 0) 'cl-openapi:schema))
-    (is (typep (aref all-of 1) 'cl-openapi:reference))))
+    (is (typep (aref all-of 0) 'io.github.cl-sdk.openapi:schema))
+    (is (typep (aref all-of 1) 'io.github.cl-sdk.openapi:reference))))
 
 ;;; ── components ──────────────────────────────────────────────────────────────
 
@@ -193,27 +193,27 @@
                  \"components\":{\"securitySchemes\":{
                    \"bearerAuth\":{\"type\":\"http\",\"scheme\":\"bearer\",
                                    \"bearerFormat\":\"JWT\"}}}}")
-         (doc      (cl-openapi:parse json))
-         (schemes  (cl-openapi:components-security-schemes
-                    (cl-openapi:openapi-components doc)))
+         (doc      (io.github.cl-sdk.openapi:parse json))
+         (schemes  (io.github.cl-sdk.openapi:components-security-schemes
+                    (io.github.cl-sdk.openapi:openapi-components doc)))
          (bearer   (gethash "bearerAuth" schemes)))
-    (is (typep bearer 'cl-openapi:security-scheme))
-    (is (string= "http"   (cl-openapi:security-scheme-type bearer)))
-    (is (string= "bearer" (cl-openapi:security-scheme-scheme bearer)))
-    (is (string= "JWT"    (cl-openapi:security-scheme-bearer-format bearer)))))
+    (is (typep bearer 'io.github.cl-sdk.openapi:security-scheme))
+    (is (string= "http"   (io.github.cl-sdk.openapi:security-scheme-type bearer)))
+    (is (string= "bearer" (io.github.cl-sdk.openapi:security-scheme-scheme bearer)))
+    (is (string= "JWT"    (io.github.cl-sdk.openapi:security-scheme-bearer-format bearer)))))
 
 (test parse-tags
   (let* ((json "{\"openapi\":\"3.0.0\",
                  \"info\":{\"title\":\"A\",\"version\":\"0\"},
                  \"paths\":{},
                  \"tags\":[{\"name\":\"pets\",\"description\":\"Everything about pets\"}]}")
-         (doc  (cl-openapi:parse json))
-         (tags (cl-openapi:openapi-tags doc)))
+         (doc  (io.github.cl-sdk.openapi:parse json))
+         (tags (io.github.cl-sdk.openapi:openapi-tags doc)))
     (is (= 1 (length tags)))
     (let ((tag (aref tags 0)))
-      (is (typep tag 'cl-openapi:tag))
-      (is (string= "pets" (cl-openapi:tag-name tag)))
-      (is (string= "Everything about pets" (cl-openapi:tag-description tag))))))
+      (is (typep tag 'io.github.cl-sdk.openapi:tag))
+      (is (string= "pets" (io.github.cl-sdk.openapi:tag-name tag)))
+      (is (string= "Everything about pets" (io.github.cl-sdk.openapi:tag-description tag))))))
 
 ;;; ── response ────────────────────────────────────────────────────────────────
 
@@ -226,13 +226,13 @@
                      \"200\":{\"description\":\"OK\",
                               \"content\":{\"application/json\":{\"schema\":{\"type\":\"array\",\"items\":{\"type\":\"string\"}}}}},
                      \"404\":{\"description\":\"Not Found\"}}}}}}")
-         (doc      (cl-openapi:parse json))
-         (op       (cl-openapi:path-item-get
-                    (gethash "/items" (cl-openapi:openapi-paths doc))))
-         (resp-200 (gethash "200" (cl-openapi:operation-responses op)))
-         (resp-404 (gethash "404" (cl-openapi:operation-responses op))))
-    (is (typep resp-200 'cl-openapi:response))
-    (is (string= "OK" (cl-openapi:response-description resp-200)))
-    (is (typep resp-404 'cl-openapi:response))
-    (is (string= "Not Found" (cl-openapi:response-description resp-404)))))
+         (doc      (io.github.cl-sdk.openapi:parse json))
+         (op       (io.github.cl-sdk.openapi:path-item-get
+                    (gethash "/items" (io.github.cl-sdk.openapi:openapi-paths doc))))
+         (resp-200 (gethash "200" (io.github.cl-sdk.openapi:operation-responses op)))
+         (resp-404 (gethash "404" (io.github.cl-sdk.openapi:operation-responses op))))
+    (is (typep resp-200 'io.github.cl-sdk.openapi:response))
+    (is (string= "OK" (io.github.cl-sdk.openapi:response-description resp-200)))
+    (is (typep resp-404 'io.github.cl-sdk.openapi:response))
+    (is (string= "Not Found" (io.github.cl-sdk.openapi:response-description resp-404)))))
 
diff --git a/t/package.lisp b/t/package.lisp
index c77ac15..819390c 100644
--- a/t/package.lisp
+++ b/t/package.lisp
@@ -1,4 +1,4 @@
-(defpackage #:cl-openapi.test
-  (:use #:cl #:5am #:cl-openapi))
+(defpackage #:io.github.cl-sdk.openapi.test
+  (:use #:cl #:5am #:io.github.cl-sdk.openapi))
 
-(in-package :cl-openapi.test)
+(in-package :io.github.cl-sdk.openapi.test)
diff --git a/tests-runner.lisp b/tests-runner.lisp
index 47ae22b..f4b5f18 100644
--- a/tests-runner.lisp
+++ b/tests-runner.lisp
@@ -4,7 +4,7 @@
 
 (asdf:initialize-source-registry)
 
-(ql:quickload :cl-openapi.test)
+(ql:quickload :io.github.cl-sdk.openapi.test)
 
 (unless (5am:run-all-tests)
   (uiop:quit -1))
diff --git a/types.lisp b/types.lisp
index 3a1b9bd..9d1cdbb 100644
--- a/types.lisp
+++ b/types.lisp
@@ -1,4 +1,4 @@
-(in-package #:cl-openapi)
+(in-package #:io.github.cl-sdk.openapi)
 
 ;;; CLOS class definitions for the OpenAPI 3.0 Specification objects.
 ;;;