diff --git a/generation_config.yaml b/generation_config.yaml
index 37a5a8de07..4c6dd1013a 100644
--- a/generation_config.yaml
+++ b/generation_config.yaml
@@ -2,8 +2,6 @@ gapic_generator_version: 2.40.1-SNAPSHOT
 protoc_version: '25.3'
 googleapis_commitish: 5a0ae652df1ef39b7849bf2bd6ba417376ce3204
 libraries_bom_version: 26.38.0
-owlbot_cli_image: sha256:623647ee79ac605858d09e60c1382a716c125fb776f69301b72de1cd35d49409
-synthtool_commitish: 63cc541da2c45fcfca2136c43e638da1fbae174d
 template_excludes:
 - .github/*
 - .kokoro/*