diff --git a/.github/workflows/build-pull.yaml b/.github/workflows/build-pull.yaml
index ad6d86d03..44c211296 100644
--- a/.github/workflows/build-pull.yaml
+++ b/.github/workflows/build-pull.yaml
@@ -68,9 +68,10 @@ jobs:
       dockerfile: python312/Dockerfile
       context: components/runtimes/python
 
-  build-java17:
-    uses: kyma-project/test-infra/.github/workflows/image-builder.yml@main # Usage: kyma-project/test-infra/.github/workflows/image-builder.yml@main
-    with:
-      name: function-runtime-java17-jvm-alpha
-      dockerfile: Dockerfile-jvm-runtime
-      context: components/runtimes/java17
+  # skipped because Dockerfile uses illegal external images and that needs additional investigation
+  # build-java17:
+  #   uses: kyma-project/test-infra/.github/workflows/image-builder.yml@main # Usage: kyma-project/test-infra/.github/workflows/image-builder.yml@main
+  #   with:
+  #     name: function-runtime-java17-jvm-alpha
+  #     dockerfile: Dockerfile-jvm-runtime
+  #     context: components/runtimes/java17
diff --git a/.github/workflows/build-push-release.yaml b/.github/workflows/build-push-release.yaml
index 748f1a2b6..efa391123 100644
--- a/.github/workflows/build-push-release.yaml
+++ b/.github/workflows/build-push-release.yaml
@@ -99,11 +99,12 @@ jobs:
       context: components/runtimes/python
       tags: ${{ needs.compute-tags.outputs.tags }}
 
-  build-java17:
-    needs: compute-tags
-    uses: kyma-project/test-infra/.github/workflows/image-builder.yml@main # Usage: kyma-project/test-infra/.github/workflows/image-builder.yml@main
-    with:
-      name: function-runtime-java17-jvm-alpha
-      dockerfile: Dockerfile-jvm-runtime
-      context: components/runtimes/java17
-      tags: ${{ needs.compute-tags.outputs.tags }}
+  # skipped because Dockerfile uses illegal external images and that needs additional investigation
+  # build-java17:
+  #   needs: compute-tags
+  #   uses: kyma-project/test-infra/.github/workflows/image-builder.yml@main # Usage: kyma-project/test-infra/.github/workflows/image-builder.yml@main
+  #   with:
+  #     name: function-runtime-java17-jvm-alpha
+  #     dockerfile: Dockerfile-jvm-runtime
+  #     context: components/runtimes/java17
+  #     tags: ${{ needs.compute-tags.outputs.tags }}