diff --git a/generation_config.yaml b/generation_config.yaml
index 8df3a3595..6af04d6a1 100644
--- a/generation_config.yaml
+++ b/generation_config.yaml
@@ -1,5 +1,5 @@
 gapic_generator_version: 2.49.0
-googleapis_commitish: c72f219fedbb57d3f83c10550e135c4824b670eb
+googleapis_commitish: 5257378f52352e70b8995713f0d4484bdab7e71d
 libraries_bom_version: 26.50.0
 libraries:
   - api_shortname: pubsublite