diff --git a/generation_config.yaml b/generation_config.yaml
index c644dddde..c98375b66 100644
--- a/generation_config.yaml
+++ b/generation_config.yaml
@@ -1,5 +1,5 @@
 gapic_generator_version: 2.42.0
-googleapis_commitish: 3ce84c2ca3f3e453e62bbb9bffb62f3f8ec3f016
+googleapis_commitish: 19577edb4d439db98d2fb1f6f48f2e1b29fba099
 libraries_bom_version: 26.43.0
 libraries:
   - api_shortname: pubsub