diff --git a/package.json b/package.json
index 473c680c..72bcf759 100644
--- a/package.json
+++ b/package.json
@@ -30,7 +30,7 @@
     "@biomejs/biome": "^2.4.12",
     "@lavamoat/allow-scripts": "^3.4.3",
     "@lavamoat/preinstall-always-fail": "^2.1.0",
-    "@types/node": "^18.19.130",
+    "@types/node": "^25.6.0",
     "glob": "^13.0.6",
     "jest": "^30.0.5",
     "lerna": "^9.0.3",
diff --git a/packages/browser/package.json b/packages/browser/package.json
index de5a274b..e0e7dea7 100644
--- a/packages/browser/package.json
+++ b/packages/browser/package.json
@@ -56,7 +56,7 @@
     "@openfeature/web-sdk": "^1.5.0",
     "@types/chrome": "^0.1.18",
     "@types/jest": "^30.0.0",
-    "@types/node": "^18.0.0",
+    "@types/node": "^25.6.0",
     "fake-indexeddb": "^6.2.5",
     "jest": "^30.0.4",
     "jest-environment-jsdom": "^30.0.4",
diff --git a/packages/core/package.json b/packages/core/package.json
index f46abdc9..63a4af17 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -43,7 +43,7 @@
   "devDependencies": {
     "@openfeature/core": "^1.9.2",
     "@types/jest": "^30.0.0",
-    "@types/node": "^18.0.0",
+    "@types/node": "^25.6.0",
     "@types/spark-md5": "^3.0.5",
     "jest": "^30.0.5",
     "npm-run-all": "^4.1.5",
diff --git a/packages/node-server/package.json b/packages/node-server/package.json
index 62bc37d0..47c5fbe9 100644
--- a/packages/node-server/package.json
+++ b/packages/node-server/package.json
@@ -45,7 +45,7 @@
     "@openfeature/core": "1.9.2",
     "@openfeature/server-sdk": "1.20.2",
     "@types/jest": "^30.0.0",
-    "@types/node": "^18.19.130",
+    "@types/node": "^25.6.0",
     "jest": "^30.0.5",
     "npm-run-all": "^4.1.5",
     "ts-jest": "^29.4.9",
diff --git a/yarn.lock b/yarn.lock
index 61f1bc52..01da8544 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -674,7 +674,7 @@ __metadata:
   dependencies:
     "@openfeature/core": "npm:^1.9.2"
     "@types/jest": "npm:^30.0.0"
-    "@types/node": "npm:^18.0.0"
+    "@types/node": "npm:^25.6.0"
     "@types/spark-md5": "npm:^3.0.5"
     jest: "npm:^30.0.5"
     npm-run-all: "npm:^4.1.5"
@@ -695,7 +695,7 @@ __metadata:
     "@openfeature/web-sdk": "npm:^1.5.0"
     "@types/chrome": "npm:^0.1.18"
     "@types/jest": "npm:^30.0.0"
-    "@types/node": "npm:^18.0.0"
+    "@types/node": "npm:^25.6.0"
     fake-indexeddb: "npm:^6.2.5"
     jest: "npm:^30.0.4"
     jest-environment-jsdom: "npm:^30.0.4"
@@ -719,7 +719,7 @@ __metadata:
     "@biomejs/biome": "npm:^2.4.12"
     "@lavamoat/allow-scripts": "npm:^3.4.3"
     "@lavamoat/preinstall-always-fail": "npm:^2.1.0"
-    "@types/node": "npm:^18.19.130"
+    "@types/node": "npm:^25.6.0"
     emoji-name-map: "npm:^2.0.3"
     glob: "npm:^13.0.6"
     jest: "npm:^30.0.5"
@@ -744,7 +744,7 @@ __metadata:
     "@openfeature/core": "npm:1.9.2"
     "@openfeature/server-sdk": "npm:1.20.2"
     "@types/jest": "npm:^30.0.0"
-    "@types/node": "npm:^18.19.130"
+    "@types/node": "npm:^25.6.0"
     jest: "npm:^30.0.5"
     npm-run-all: "npm:^4.1.5"
     ts-jest: "npm:^29.4.9"
@@ -2356,12 +2356,12 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/node@npm:^18.0.0, @types/node@npm:^18.19.130":
-  version: 18.19.130
-  resolution: "@types/node@npm:18.19.130"
+"@types/node@npm:^25.6.0":
+  version: 25.6.0
+  resolution: "@types/node@npm:25.6.0"
   dependencies:
-    undici-types: "npm:~5.26.4"
-  checksum: 10c0/22ba2bc9f8863101a7e90a56aaeba1eb3ebdc51e847cef4a6d188967ab1acbce9b4f92251372fd0329ecb924bbf610509e122c3dfe346c04dbad04013d4ad7d0
+    undici-types: "npm:~7.19.0"
+  checksum: 10c0/d2d2015630ff098a201407f55f5077a20270ae4f465c739b40865cd9933b91b9c5d2b85568eadaf3db0801b91e267333ca7eb39f007428b173d1cdab4b339ac5
   languageName: node
   linkType: hard
 
@@ -9336,7 +9336,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"ts-loader@npm:^9.5.2, ts-loader@npm:^9.5.4, ts-loader@npm:^9.5.7":
+"ts-loader@npm:^9.5.2, ts-loader@npm:^9.5.7":
   version: 9.5.7
   resolution: "ts-loader@npm:9.5.7"
   dependencies:
@@ -9574,10 +9574,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"undici-types@npm:~5.26.4":
-  version: 5.26.5
-  resolution: "undici-types@npm:5.26.5"
-  checksum: 10c0/bb673d7876c2d411b6eb6c560e0c571eef4a01c1c19925175d16e3a30c4c428181fb8d7ae802a261f283e4166a0ac435e2f505743aa9e45d893f9a3df017b501
+"undici-types@npm:~7.19.0":
+  version: 7.19.2
+  resolution: "undici-types@npm:7.19.2"
+  checksum: 10c0/7159f10546f9f6c47d36776bb1bbf8671e87c1e587a6fee84ae1f111ae8de4f914efa8ca0dfcd224f4f4a9dfc3f6028f627ccb5ddaccf82d7fd54671b89fac3e
   languageName: node
   linkType: hard