diff --git a/packages/openapi-generator/package.json b/packages/openapi-generator/package.json
index d9cdb76a91..1a889bac55 100644
--- a/packages/openapi-generator/package.json
+++ b/packages/openapi-generator/package.json
@@ -52,7 +52,7 @@
     "readme": "node ../../scripts/replace-common-readme.ts"
   },
   "dependencies": {
-    "@apidevtools/swagger-parser": "^12.1.0",
+    "@apidevtools/swagger-parser": "^13.0.0",
     "@sap-cloud-sdk/generator-common": "workspace:^",
     "@sap-cloud-sdk/openapi": "workspace:^",
     "@sap-cloud-sdk/util": "workspace:^",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index a3ccd7d218..ae2f762d36 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -671,8 +671,8 @@ importers:
   packages/openapi-generator:
     dependencies:
       '@apidevtools/swagger-parser':
-        specifier: ^12.1.0
-        version: 12.1.0(openapi-types@12.1.3)
+        specifier: ^13.0.0
+        version: 13.0.0(openapi-types@12.1.3)
       '@sap-cloud-sdk/generator-common':
         specifier: workspace:^
         version: link:../generator-common
@@ -826,8 +826,8 @@ importers:
   test-packages/e2e-tests:
     devDependencies:
       '@apidevtools/swagger-parser':
-        specifier: 12.1.0
-        version: 12.1.0(openapi-types@12.1.3)
+        specifier: 13.0.0
+        version: 13.0.0(openapi-types@12.1.3)
       '@cap-js/sqlite':
         specifier: 3.0.2
         version: 3.0.2(@sap/cds@10.0.6(@eslint/js@10.0.1(eslint@10.10.0(jiti@2.7.0))))
@@ -1171,9 +1171,11 @@ packages:
     resolution: {integrity: sha512-60vepv88RwcJtSHrD6MjIL6Ta3SOYbgfnkHb+ppAVK+o9mXprRtulx7VlRl3lN3bbvysAfCS7WMVfhUYemB0IQ==}
     engines: {node: '>= 16'}
 
-  '@apidevtools/json-schema-ref-parser@14.0.1':
-    resolution: {integrity: sha512-Oc96zvmxx1fqoSEdUmfmvvb59/KDOnUoJ7s2t7bISyAn0XEz57LCCw8k2Y4Pf3mwKaZLMciESALORLgfe2frCw==}
-    engines: {node: '>= 16'}
+  '@apidevtools/json-schema-ref-parser@15.3.6':
+    resolution: {integrity: sha512-oPFDSviRrreUmCZn09LCD4S9QQa6j7zfEwBM1pkGa/kXY0O4sXsEXn4emLP/Tt6tik2+BtgwKk2eldAeOWZ2Rw==}
+    engines: {node: '>=20'}
+    peerDependencies:
+      '@types/json-schema': ^7.0.15
 
   '@apidevtools/openapi-schemas@2.1.0':
     resolution: {integrity: sha512-Zc1AlqrJlX3SlpupFGpiLi2EbteyP7fXmUOGup6/DnkRgjP9bgMM/ag+n91rsv0U1Gpz0H3VILA/o3bW7Ua6BQ==}
@@ -1182,8 +1184,9 @@ packages:
   '@apidevtools/swagger-methods@3.0.2':
     resolution: {integrity: sha512-QAkD5kK2b1WfjDS/UQn/qQkbwF31uqRjPTrsCs5ZG9BQGAkjwvqGFjjPqAuzac/IYzpPtRzjCP1WrTuAIjMrXg==}
 
-  '@apidevtools/swagger-parser@12.1.0':
-    resolution: {integrity: sha512-e5mJoswsnAX0jG+J09xHFYQXb/bUc5S3pLpMxUuRUA2H8T2kni3yEoyz2R3Dltw5f4A6j6rPNMpWTK+iVDFlng==}
+  '@apidevtools/swagger-parser@13.0.0':
+    resolution: {integrity: sha512-TcvnmBzJD7DBREkc/2qaxMqbKpttOaHhOFsYRYKdYAv6HGY+iNlWY2IUA209C2/NmvL9z8RBZhkrESqvGkjqmw==}
+    engines: {node: ^20.19.0 || >=22.12.0}
     peerDependencies:
       openapi-types: '>=7'
 
@@ -6054,20 +6057,21 @@ snapshots:
       '@types/json-schema': 7.0.15
       js-yaml: 4.3.1
 
-  '@apidevtools/json-schema-ref-parser@14.0.1':
+  '@apidevtools/json-schema-ref-parser@15.3.6(@types/json-schema@7.0.15)':
     dependencies:
       '@types/json-schema': 7.0.15
-      js-yaml: 4.3.1
+      js-yaml: 4.3.2
 
   '@apidevtools/openapi-schemas@2.1.0': {}
 
   '@apidevtools/swagger-methods@3.0.2': {}
 
-  '@apidevtools/swagger-parser@12.1.0(openapi-types@12.1.3)':
+  '@apidevtools/swagger-parser@13.0.0(openapi-types@12.1.3)':
     dependencies:
-      '@apidevtools/json-schema-ref-parser': 14.0.1
+      '@apidevtools/json-schema-ref-parser': 15.3.6(@types/json-schema@7.0.15)
       '@apidevtools/openapi-schemas': 2.1.0
       '@apidevtools/swagger-methods': 3.0.2
+      '@types/json-schema': 7.0.15
       ajv: 8.20.0
       ajv-draft-04: 1.0.0(ajv@8.20.0)
       call-me-maybe: 1.0.2
diff --git a/test-packages/e2e-tests/package.json b/test-packages/e2e-tests/package.json
index 16195e713a..1fee28aa79 100644
--- a/test-packages/e2e-tests/package.json
+++ b/test-packages/e2e-tests/package.json
@@ -20,7 +20,7 @@
     "generate-edmx": "cds compile srv -s TestService -2 edmx > TestService.edmx"
   },
   "devDependencies": {
-    "@apidevtools/swagger-parser": "12.1.0",
+    "@apidevtools/swagger-parser": "13.0.0",
     "@cap-js/sqlite": "3.0.2",
     "@jest/globals": "30.5.1",
     "@sap-cloud-sdk/connectivity": "workspace:^",