diff --git a/pom.xml b/pom.xml
index 8e684741..4ca45a60 100644
--- a/pom.xml
+++ b/pom.xml
@@ -71,7 +71,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-spanner-bom</artifactId>
-        <version>3.3.2</version>
+        <version>4.0.0</version>
         <type>pom</type>
         <scope>import</scope>
       </dependency>