diff --git a/.github/workflows/hermetic_library_generation.yaml b/.github/workflows/hermetic_library_generation.yaml
index 604b674ba..35aa3b151 100644
--- a/.github/workflows/hermetic_library_generation.yaml
+++ b/.github/workflows/hermetic_library_generation.yaml
@@ -37,7 +37,7 @@ jobs:
       with:
         fetch-depth: 0
         token: ${{ secrets.CLOUD_JAVA_BOT_TOKEN }}
-    - uses: googleapis/sdk-platform-java/.github/scripts@v2.51.0
+    - uses: googleapis/sdk-platform-java/.github/scripts@v2.50.0
       if: env.SHOULD_RUN == 'true'
       with:
         base_ref: ${{ github.base_ref }}
diff --git a/generation_config.yaml b/generation_config.yaml
index a1f95639c..bdfd47e10 100644
--- a/generation_config.yaml
+++ b/generation_config.yaml
@@ -1,4 +1,4 @@
-gapic_generator_version: 2.51.0
+gapic_generator_version: 2.50.0
 googleapis_commitish: 7d0c6bee2517d77635beb2a1dd6d6e7d4d943512
 libraries_bom_version: 26.51.0
 libraries: