diff --git a/generation_config.yaml b/generation_config.yaml
index 832596b473..9862d2aef9 100644
--- a/generation_config.yaml
+++ b/generation_config.yaml
@@ -1,4 +1,4 @@
-googleapis_commitish: 960afb319265a0c1e109e39153563b3d2b21440c
+googleapis_commitish: 9e966149c59f47f6305d66c98e2a9e7d9c26a2eb
 # the libraries are ordered with respect to library name, which is
 # java-{library.library_name} or java-{library.api-shortname} when
 # library.library_name is not defined.