diff --git a/generation_config.yaml b/generation_config.yaml
index 72d12540e45..c262ba98b14 100644
--- a/generation_config.yaml
+++ b/generation_config.yaml
@@ -1,5 +1,5 @@
 gapic_generator_version: 2.55.1
-googleapis_commitish: bc7f715d7f58afe381fbc244a8bcde7f0afa11ed
+googleapis_commitish: 803b23488149d2d00725edc52d8a6498b6ab0fec
 libraries_bom_version: 26.56.0
 libraries:
   - api_shortname: spanner