diff --git a/generation_config.yaml b/generation_config.yaml
index 899358a4c7..49e3c01dca 100644
--- a/generation_config.yaml
+++ b/generation_config.yaml
@@ -1,4 +1,4 @@
-googleapis_commitish: baa225c2e09886cf0fb972ca286818d0e1e02675
+googleapis_commitish: 9c586e8f14bcd6dfe47c35a5dcbeac446e634f73
 # 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.