diff --git a/README.md b/README.md
index 5d6e065b8d..0f50fe2c65 100644
--- a/README.md
+++ b/README.md
@@ -49,7 +49,7 @@ If you are using Maven without the BOM, add this to your dependencies:
 If you are using Gradle 5.x or later, add this to your dependencies:
 
 ```Groovy
-implementation platform('com.google.cloud:libraries-bom:26.65.0')
+implementation platform('com.google.cloud:libraries-bom:26.66.0')
 
 implementation 'com.google.cloud:google-cloud-spanner'
 ```
diff --git a/generation_config.yaml b/generation_config.yaml
index b0d9f4d241..1016995bdf 100644
--- a/generation_config.yaml
+++ b/generation_config.yaml
@@ -1,6 +1,6 @@
 gapic_generator_version: 2.61.0
-googleapis_commitish: 07d9064dde02424bc0166c04ac6582e0922f89f9
-libraries_bom_version: 26.65.0
+googleapis_commitish: d869249c5d3da60af39dc7968140468ef7d1fdd6
+libraries_bom_version: 26.66.0
 libraries:
   - api_shortname: spanner
     name_pretty: Cloud Spanner