diff --git a/.github/readme/synth.metadata/synth.metadata b/.github/readme/synth.metadata/synth.metadata
index d295adb59e8..dfef9855f54 100644
--- a/.github/readme/synth.metadata/synth.metadata
+++ b/.github/readme/synth.metadata/synth.metadata
@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-spanner.git",
-        "sha": "5af36739532037360dfd504a4a0988562550526c"
+        "sha": "3f5351df6d13bd3bc3639e8a75e24ae924a4cfec"
       }
     },
     {
diff --git a/README.md b/README.md
index 0fc145b29b7..f35503e755a 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ If you are using Maven with [BOM][libraries-bom], add this to your pom.xml file
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>libraries-bom</artifactId>
-      <version>16.3.0</version>
+      <version>16.4.0</version>
       <type>pom</type>
       <scope>import</scope>
     </dependency>