diff --git a/CHANGELOG.md b/CHANGELOG.md
index 92453453..bf2b8651 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+### [2.1.9](https://www.github.com/googleapis/java-containeranalysis/compare/v2.1.8...v2.1.9) (2021-10-19)
+
+
+### Dependencies
+
+* update dependency com.google.cloud:google-cloud-shared-dependencies to v2.4.0 ([#734](https://www.github.com/googleapis/java-containeranalysis/issues/734)) ([7886f2b](https://www.github.com/googleapis/java-containeranalysis/commit/7886f2b6bd10afe5118ae6b10d6495e3d86d1222))
+
 ### [2.1.8](https://www.github.com/googleapis/java-containeranalysis/compare/v2.1.7...v2.1.8) (2021-10-06)
 
 
diff --git a/google-cloud-containeranalysis-bom/pom.xml b/google-cloud-containeranalysis-bom/pom.xml
index 8244bf58..b3f1a8ce 100644
--- a/google-cloud-containeranalysis-bom/pom.xml
+++ b/google-cloud-containeranalysis-bom/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-containeranalysis-bom</artifactId>
-  <version>2.1.9-SNAPSHOT</version><!-- {x-version-update:google-cloud-containeranalysis:current} -->
+  <version>2.1.9</version><!-- {x-version-update:google-cloud-containeranalysis:current} -->
   <packaging>pom</packaging>
   <parent>
     <groupId>com.google.cloud</groupId>
@@ -53,27 +53,27 @@
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-containeranalysis-v1</artifactId>
-        <version>2.1.9-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-containeranalysis-v1:current} -->
+        <version>2.1.9</version><!-- {x-version-update:proto-google-cloud-containeranalysis-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-containeranalysis-v1beta1</artifactId>
-        <version>0.91.9-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-containeranalysis-v1beta1:current} -->
+        <version>0.91.9</version><!-- {x-version-update:grpc-google-cloud-containeranalysis-v1beta1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-containeranalysis</artifactId>
-        <version>2.1.9-SNAPSHOT</version><!-- {x-version-update:google-cloud-containeranalysis:current} -->
+        <version>2.1.9</version><!-- {x-version-update:google-cloud-containeranalysis:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-containeranalysis-v1</artifactId>
-        <version>2.1.9-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-containeranalysis-v1:current} -->
+        <version>2.1.9</version><!-- {x-version-update:grpc-google-cloud-containeranalysis-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-containeranalysis-v1beta1</artifactId>
-        <version>0.91.9-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-containeranalysis-v1beta1:current} -->
+        <version>0.91.9</version><!-- {x-version-update:proto-google-cloud-containeranalysis-v1beta1:current} -->
       </dependency>
     </dependencies>
   </dependencyManagement>
diff --git a/google-cloud-containeranalysis/pom.xml b/google-cloud-containeranalysis/pom.xml
index 6fbe4e08..24cb1b9f 100644
--- a/google-cloud-containeranalysis/pom.xml
+++ b/google-cloud-containeranalysis/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-containeranalysis</artifactId>
-  <version>2.1.9-SNAPSHOT</version><!-- {x-version-update:google-cloud-containeranalysis:current} -->
+  <version>2.1.9</version><!-- {x-version-update:google-cloud-containeranalysis:current} -->
   <packaging>jar</packaging>
   <name>Google Cloud Container Analysis</name>
   <url>https://github.com/googleapis/java-containeranalysis</url>
@@ -11,7 +11,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-containeranalysis-parent</artifactId>
-    <version>2.1.9-SNAPSHOT</version><!-- {x-version-update:google-cloud-containeranalysis:current} -->
+    <version>2.1.9</version><!-- {x-version-update:google-cloud-containeranalysis:current} -->
   </parent>
   <properties>
     <site.installationModule>google-cloud-containeranalysis</site.installationModule>
diff --git a/grpc-google-cloud-containeranalysis-v1/pom.xml b/grpc-google-cloud-containeranalysis-v1/pom.xml
index 31697fa5..983835c6 100644
--- a/grpc-google-cloud-containeranalysis-v1/pom.xml
+++ b/grpc-google-cloud-containeranalysis-v1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>grpc-google-cloud-containeranalysis-v1</artifactId>
-  <version>2.1.9-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-containeranalysis-v1:current} -->
+  <version>2.1.9</version><!-- {x-version-update:grpc-google-cloud-containeranalysis-v1:current} -->
   <name>grpc-google-cloud-containeranalysis-v1</name>
   <description>GRPC library for grpc-google-cloud-containeranalysis-v1</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-containeranalysis-parent</artifactId>
-    <version>2.1.9-SNAPSHOT</version><!-- {x-version-update:google-cloud-containeranalysis:current} -->
+    <version>2.1.9</version><!-- {x-version-update:google-cloud-containeranalysis:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/grpc-google-cloud-containeranalysis-v1beta1/pom.xml b/grpc-google-cloud-containeranalysis-v1beta1/pom.xml
index 191c085b..c344412a 100644
--- a/grpc-google-cloud-containeranalysis-v1beta1/pom.xml
+++ b/grpc-google-cloud-containeranalysis-v1beta1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>grpc-google-cloud-containeranalysis-v1beta1</artifactId>
-  <version>0.91.9-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-containeranalysis-v1beta1:current} -->
+  <version>0.91.9</version><!-- {x-version-update:grpc-google-cloud-containeranalysis-v1beta1:current} -->
   <name>grpc-google-cloud-containeranalysis-v1beta1</name>
   <description>GRPC library for grpc-google-cloud-containeranalysis-v1beta1</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-containeranalysis-parent</artifactId>
-    <version>2.1.9-SNAPSHOT</version><!-- {x-version-update:google-cloud-containeranalysis:current} -->
+    <version>2.1.9</version><!-- {x-version-update:google-cloud-containeranalysis:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/pom.xml b/pom.xml
index 590278e1..0769dbef 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-containeranalysis-parent</artifactId>
   <packaging>pom</packaging>
-  <version>2.1.9-SNAPSHOT</version><!-- {x-version-update:google-cloud-containeranalysis:current} -->
+  <version>2.1.9</version><!-- {x-version-update:google-cloud-containeranalysis:current} -->
   <name>Google Cloud Container Analysis Parent</name>
   <url>https://github.com/googleapis/java-containeranalysis</url>
   <description>
@@ -61,27 +61,27 @@
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-containeranalysis-v1</artifactId>
-        <version>2.1.9-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-containeranalysis-v1:current} -->
+        <version>2.1.9</version><!-- {x-version-update:proto-google-cloud-containeranalysis-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-containeranalysis-v1beta1</artifactId>
-        <version>0.91.9-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-containeranalysis-v1beta1:current} -->
+        <version>0.91.9</version><!-- {x-version-update:proto-google-cloud-containeranalysis-v1beta1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-containeranalysis-v1beta1</artifactId>
-        <version>0.91.9-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-containeranalysis-v1beta1:current} -->
+        <version>0.91.9</version><!-- {x-version-update:grpc-google-cloud-containeranalysis-v1beta1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-containeranalysis-v1</artifactId>
-        <version>2.1.9-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-containeranalysis-v1:current} -->
+        <version>2.1.9</version><!-- {x-version-update:grpc-google-cloud-containeranalysis-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-containeranalysis</artifactId>
-        <version>2.1.9-SNAPSHOT</version><!-- {x-version-update:google-cloud-containeranalysis:current} -->
+        <version>2.1.9</version><!-- {x-version-update:google-cloud-containeranalysis:current} -->
       </dependency>
 
       <dependency>
diff --git a/proto-google-cloud-containeranalysis-v1/pom.xml b/proto-google-cloud-containeranalysis-v1/pom.xml
index 8a418f65..de16783d 100644
--- a/proto-google-cloud-containeranalysis-v1/pom.xml
+++ b/proto-google-cloud-containeranalysis-v1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>proto-google-cloud-containeranalysis-v1</artifactId>
-  <version>2.1.9-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-containeranalysis-v1:current} -->
+  <version>2.1.9</version><!-- {x-version-update:proto-google-cloud-containeranalysis-v1:current} -->
   <name>proto-google-cloud-containeranalysis-v1</name>
   <description>PROTO library for proto-google-cloud-containeranalysis-v1</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-containeranalysis-parent</artifactId>
-    <version>2.1.9-SNAPSHOT</version><!-- {x-version-update:google-cloud-containeranalysis:current} -->
+    <version>2.1.9</version><!-- {x-version-update:google-cloud-containeranalysis:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/proto-google-cloud-containeranalysis-v1beta1/pom.xml b/proto-google-cloud-containeranalysis-v1beta1/pom.xml
index a81e7372..a822764c 100644
--- a/proto-google-cloud-containeranalysis-v1beta1/pom.xml
+++ b/proto-google-cloud-containeranalysis-v1beta1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>proto-google-cloud-containeranalysis-v1beta1</artifactId>
-  <version>0.91.9-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-containeranalysis-v1beta1:current} -->
+  <version>0.91.9</version><!-- {x-version-update:proto-google-cloud-containeranalysis-v1beta1:current} -->
   <name>proto-google-cloud-containeranalysis-v1beta1</name>
   <description>PROTO library for proto-google-cloud-containeranalysis-v1beta1</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-containeranalysis-parent</artifactId>
-    <version>2.1.9-SNAPSHOT</version><!-- {x-version-update:google-cloud-containeranalysis:current} -->
+    <version>2.1.9</version><!-- {x-version-update:google-cloud-containeranalysis:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/versions.txt b/versions.txt
index ecb970e1..6f409334 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,8 +1,8 @@
 # Format:
 # module:released-version:current-version
 
-proto-google-cloud-containeranalysis-v1:2.1.8:2.1.9-SNAPSHOT
-proto-google-cloud-containeranalysis-v1beta1:0.91.8:0.91.9-SNAPSHOT
-grpc-google-cloud-containeranalysis-v1beta1:0.91.8:0.91.9-SNAPSHOT
-grpc-google-cloud-containeranalysis-v1:2.1.8:2.1.9-SNAPSHOT
-google-cloud-containeranalysis:2.1.8:2.1.9-SNAPSHOT
+proto-google-cloud-containeranalysis-v1:2.1.9:2.1.9
+proto-google-cloud-containeranalysis-v1beta1:0.91.9:0.91.9
+grpc-google-cloud-containeranalysis-v1beta1:0.91.9:0.91.9
+grpc-google-cloud-containeranalysis-v1:2.1.9:2.1.9
+google-cloud-containeranalysis:2.1.9:2.1.9