diff --git a/third_party/docfx-doclet-143274/pom.xml b/third_party/docfx-doclet-143274/pom.xml
index 13f5fd5..9a0a885 100644
--- a/third_party/docfx-doclet-143274/pom.xml
+++ b/third_party/docfx-doclet-143274/pom.xml
@@ -117,7 +117,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>libraries-bom</artifactId>
-        <version>26.37.0</version>
+        <version>26.40.0</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>