diff --git a/generation_config.yaml b/generation_config.yaml
index 992d0f81d..37c2a59f1 100644
--- a/generation_config.yaml
+++ b/generation_config.yaml
@@ -1,5 +1,5 @@
 gapic_generator_version: 2.45.0
-googleapis_commitish: 07b069bfb0f49d0e95097ac1811c99fc7ad6d3f4
+googleapis_commitish: a18d9b2c3563527b26c4b713469e795b92795271
 libraries_bom_version: 26.47.0
 libraries:
   - api_shortname: pubsub