diff --git a/conda_recipe_v2_schema/model.py b/conda_recipe_v2_schema/model.py
index 7fc56c4..404cdd6 100644
--- a/conda_recipe_v2_schema/model.py
+++ b/conda_recipe_v2_schema/model.py
@@ -192,6 +192,21 @@ class ScriptEnv(StrictBaseModel):
     )
 
 
+class PostProcess(StrictBaseModel):
+    files: list[NonEmptyStr] = Field(
+        ...,
+        description="List of glob patterns selecting files to process. Files must be valid UTF-8 text.",
+    )
+    regex: NonEmptyStr = Field(
+        ...,
+        description="Regular expression pattern to match (uses Rust `regex` crate semantics).",
+    )
+    replacement: str = Field(
+        ...,
+        description="Replacement string applied using `replace_all` behavior.",
+    )
+
+
 class Build(StrictBaseModel):
     number: UnsignedInt | JinjaExpr | None = Field(
         0,
@@ -251,6 +266,11 @@ class Build(StrictBaseModel):
         None, description="Glob patterns to include or exclude files from the package."
     )
 
+    post_process: list[PostProcess] | None = Field(
+        None,
+        description="A list of post-processing steps. Each entry applies a regex replacement on the selected files. Files must be valid UTF-8 text. Regex uses Rust `regex` crate semantics and `replace_all` behavior.",
+    )
+
 
 class BaseScript(StrictBaseModel):
     interpreter: NonEmptyStr | None = Field(
diff --git a/examples/valid/post-process/recipe.yaml b/examples/valid/post-process/recipe.yaml
new file mode 100644
index 0000000..8c40d9f
--- /dev/null
+++ b/examples/valid/post-process/recipe.yaml
@@ -0,0 +1,23 @@
+# yaml-language-server: $schema=../../../schema.json
+
+# Example recipe demonstrating the build.post_process feature.
+# post_process applies regex replacements on files in the package
+# after the build step. Files must be valid UTF-8 text.
+# Regex uses Rust `regex` crate semantics with `replace_all` behavior.
+
+package:
+  name: post-process-example
+  version: "1.0.0"
+
+build:
+  number: 0
+  post_process:
+    - files:
+        - "bin/*"
+      regex: "/old/path"
+      replacement: "/new/path"
+    - files:
+        - "**/*.cmake"
+        - "**/*.pc"
+      regex: "/home/builder"
+      replacement: "$PREFIX"
diff --git a/schema.json b/schema.json
index bc26dc4..d6c3792 100644
--- a/schema.json
+++ b/schema.json
@@ -541,6 +541,22 @@
           "default": null,
           "description": "Glob patterns to include or exclude files from the package.",
           "title": "Files"
+        },
+        "post_process": {
+          "anyOf": [
+            {
+              "items": {
+                "$ref": "#/$defs/PostProcess"
+              },
+              "type": "array"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "A list of post-processing steps. Each entry applies a regex replacement on the selected files. Files must be valid UTF-8 text. Regex uses Rust `regex` crate semantics and `replace_all` behavior.",
+          "title": "Post Process"
         }
       },
       "title": "Build",
@@ -2960,6 +2976,22 @@
           "description": "Glob patterns to include or exclude files from the package.",
           "title": "Files"
         },
+        "post_process": {
+          "anyOf": [
+            {
+              "items": {
+                "$ref": "#/$defs/PostProcess"
+              },
+              "type": "array"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "A list of post-processing steps. Each entry applies a regex replacement on the selected files. Files must be valid UTF-8 text. Regex uses Rust `regex` crate semantics and `replace_all` behavior.",
+          "title": "Post Process"
+        },
         "cache_only": {
           "default": false,
           "deprecated": true,
@@ -3256,6 +3288,38 @@
       "title": "PerlTestElementInner",
       "type": "object"
     },
+    "PostProcess": {
+      "additionalProperties": false,
+      "properties": {
+        "files": {
+          "description": "List of glob patterns selecting files to process. Files must be valid UTF-8 text.",
+          "items": {
+            "minLength": 1,
+            "type": "string"
+          },
+          "title": "Files",
+          "type": "array"
+        },
+        "regex": {
+          "description": "Regular expression pattern to match (uses Rust `regex` crate semantics).",
+          "minLength": 1,
+          "title": "Regex",
+          "type": "string"
+        },
+        "replacement": {
+          "description": "Replacement string applied using `replace_all` behavior.",
+          "title": "Replacement",
+          "type": "string"
+        }
+      },
+      "required": [
+        "files",
+        "regex",
+        "replacement"
+      ],
+      "title": "PostProcess",
+      "type": "object"
+    },
     "PrefixDetection": {
       "additionalProperties": false,
       "properties": {
diff --git a/tests/test_recipe.py b/tests/test_recipe.py
index bda3896..51c0c54 100644
--- a/tests/test_recipe.py
+++ b/tests/test_recipe.py
@@ -11,7 +11,7 @@
 
 @pytest.fixture(
     scope="module",
-    params=["mamba", "xtensor", "single-output", "zlib", "staging"],
+    params=["mamba", "xtensor", "single-output", "zlib", "staging", "post-process"],
 )
 def valid_recipe(request) -> str:
     recipe_name = request.param