diff --git a/CHANGELOG.md b/CHANGELOG.md
index c4fc00be..83f501d7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.6.4](https://github.com/googleapis/java-network-security/compare/v0.6.3...v0.6.4) (2022-10-05)
+
+
+### Bug Fixes
+
+* update protobuf to v3.21.7 ([c5f4762](https://github.com/googleapis/java-network-security/commit/c5f47626cc18e3fd42ffd4f1bdde5fc10ab6333f))
+
 ## [0.6.3](https://github.com/googleapis/java-network-security/compare/v0.6.2...v0.6.3) (2022-10-03)
 
 
diff --git a/google-cloud-network-security-bom/pom.xml b/google-cloud-network-security-bom/pom.xml
index d5173c22..1c688bfb 100644
--- a/google-cloud-network-security-bom/pom.xml
+++ b/google-cloud-network-security-bom/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-network-security-bom</artifactId>
-  <version>0.6.4-SNAPSHOT</version><!-- {x-version-update:google-cloud-network-security:current} -->
+  <version>0.6.4</version><!-- {x-version-update:google-cloud-network-security:current} -->
   <packaging>pom</packaging>
   <parent>
     <groupId>com.google.cloud</groupId>
@@ -56,27 +56,27 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-network-security</artifactId>
-        <version>0.6.4-SNAPSHOT</version><!-- {x-version-update:google-cloud-network-security:current} -->
+        <version>0.6.4</version><!-- {x-version-update:google-cloud-network-security:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-network-security-v1beta1</artifactId>
-        <version>0.6.4-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-network-security-v1beta1:current} -->
+        <version>0.6.4</version><!-- {x-version-update:grpc-google-cloud-network-security-v1beta1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-network-security-v1</artifactId>
-        <version>0.6.4-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-network-security-v1:current} -->
+        <version>0.6.4</version><!-- {x-version-update:grpc-google-cloud-network-security-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-network-security-v1beta1</artifactId>
-        <version>0.6.4-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-network-security-v1beta1:current} -->
+        <version>0.6.4</version><!-- {x-version-update:proto-google-cloud-network-security-v1beta1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-network-security-v1</artifactId>
-        <version>0.6.4-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-network-security-v1:current} -->
+        <version>0.6.4</version><!-- {x-version-update:proto-google-cloud-network-security-v1:current} -->
       </dependency>
     </dependencies>
   </dependencyManagement>
diff --git a/google-cloud-network-security/pom.xml b/google-cloud-network-security/pom.xml
index bb7a90dd..3c77f380 100644
--- a/google-cloud-network-security/pom.xml
+++ b/google-cloud-network-security/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-network-security</artifactId>
-  <version>0.6.4-SNAPSHOT</version><!-- {x-version-update:google-cloud-network-security:current} -->
+  <version>0.6.4</version><!-- {x-version-update:google-cloud-network-security:current} -->
   <packaging>jar</packaging>
   <name>Google Network Security API</name>
   <url>https://github.com/googleapis/java-network-security</url>
@@ -11,7 +11,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-network-security-parent</artifactId>
-    <version>0.6.4-SNAPSHOT</version><!-- {x-version-update:google-cloud-network-security:current} -->
+    <version>0.6.4</version><!-- {x-version-update:google-cloud-network-security:current} -->
   </parent>
   <properties>
     <site.installationModule>google-cloud-network-security</site.installationModule>
diff --git a/grpc-google-cloud-network-security-v1/pom.xml b/grpc-google-cloud-network-security-v1/pom.xml
index 82aa58df..73b47fd8 100644
--- a/grpc-google-cloud-network-security-v1/pom.xml
+++ b/grpc-google-cloud-network-security-v1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>grpc-google-cloud-network-security-v1</artifactId>
-  <version>0.6.4-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-network-security-v1:current} -->
+  <version>0.6.4</version><!-- {x-version-update:grpc-google-cloud-network-security-v1:current} -->
   <name>grpc-google-cloud-network-security-v1</name>
   <description>GRPC library for google-cloud-network-security</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-network-security-parent</artifactId>
-    <version>0.6.4-SNAPSHOT</version><!-- {x-version-update:google-cloud-network-security:current} -->
+    <version>0.6.4</version><!-- {x-version-update:google-cloud-network-security:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/grpc-google-cloud-network-security-v1beta1/pom.xml b/grpc-google-cloud-network-security-v1beta1/pom.xml
index 5b4213d5..6d7e926c 100644
--- a/grpc-google-cloud-network-security-v1beta1/pom.xml
+++ b/grpc-google-cloud-network-security-v1beta1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>grpc-google-cloud-network-security-v1beta1</artifactId>
-  <version>0.6.4-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-network-security-v1beta1:current} -->
+  <version>0.6.4</version><!-- {x-version-update:grpc-google-cloud-network-security-v1beta1:current} -->
   <name>grpc-google-cloud-network-security-v1beta1</name>
   <description>GRPC library for google-cloud-network-security</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-network-security-parent</artifactId>
-    <version>0.6.4-SNAPSHOT</version><!-- {x-version-update:google-cloud-network-security:current} -->
+    <version>0.6.4</version><!-- {x-version-update:google-cloud-network-security:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/pom.xml b/pom.xml
index f16deea9..83fde62c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-network-security-parent</artifactId>
   <packaging>pom</packaging>
-  <version>0.6.4-SNAPSHOT</version><!-- {x-version-update:google-cloud-network-security:current} -->
+  <version>0.6.4</version><!-- {x-version-update:google-cloud-network-security:current} -->
   <name>Google Network Security API Parent</name>
   <url>https://github.com/googleapis/java-network-security</url>
   <description>
@@ -69,27 +69,27 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-network-security</artifactId>
-        <version>0.6.4-SNAPSHOT</version><!-- {x-version-update:google-cloud-network-security:current} -->
+        <version>0.6.4</version><!-- {x-version-update:google-cloud-network-security:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-network-security-v1</artifactId>
-        <version>0.6.4-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-network-security-v1:current} -->
+        <version>0.6.4</version><!-- {x-version-update:proto-google-cloud-network-security-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-network-security-v1</artifactId>
-        <version>0.6.4-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-network-security-v1:current} -->
+        <version>0.6.4</version><!-- {x-version-update:grpc-google-cloud-network-security-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-network-security-v1beta1</artifactId>
-        <version>0.6.4-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-network-security-v1beta1:current} -->
+        <version>0.6.4</version><!-- {x-version-update:grpc-google-cloud-network-security-v1beta1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-network-security-v1beta1</artifactId>
-        <version>0.6.4-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-network-security-v1beta1:current} -->
+        <version>0.6.4</version><!-- {x-version-update:proto-google-cloud-network-security-v1beta1:current} -->
       </dependency>
 
       <dependency>
diff --git a/proto-google-cloud-network-security-v1/pom.xml b/proto-google-cloud-network-security-v1/pom.xml
index 7855f6f7..e5107bf6 100644
--- a/proto-google-cloud-network-security-v1/pom.xml
+++ b/proto-google-cloud-network-security-v1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>proto-google-cloud-network-security-v1</artifactId>
-  <version>0.6.4-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-network-security-v1:current} -->
+  <version>0.6.4</version><!-- {x-version-update:proto-google-cloud-network-security-v1:current} -->
   <name>proto-google-cloud-network-security-v1</name>
   <description>Proto library for google-cloud-network-security</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-network-security-parent</artifactId>
-    <version>0.6.4-SNAPSHOT</version><!-- {x-version-update:google-cloud-network-security:current} -->
+    <version>0.6.4</version><!-- {x-version-update:google-cloud-network-security:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/proto-google-cloud-network-security-v1beta1/pom.xml b/proto-google-cloud-network-security-v1beta1/pom.xml
index acf3cedd..443ea174 100644
--- a/proto-google-cloud-network-security-v1beta1/pom.xml
+++ b/proto-google-cloud-network-security-v1beta1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>proto-google-cloud-network-security-v1beta1</artifactId>
-  <version>0.6.4-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-network-security-v1beta1:current} -->
+  <version>0.6.4</version><!-- {x-version-update:proto-google-cloud-network-security-v1beta1:current} -->
   <name>proto-google-cloud-network-security-v1beta1</name>
   <description>Proto library for google-cloud-network-security</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-network-security-parent</artifactId>
-    <version>0.6.4-SNAPSHOT</version><!-- {x-version-update:google-cloud-network-security:current} -->
+    <version>0.6.4</version><!-- {x-version-update:google-cloud-network-security:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/versions.txt b/versions.txt
index 3cd180c9..5920ecdc 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,8 +1,8 @@
 # Format:
 # module:released-version:current-version
 
-google-cloud-network-security:0.6.3:0.6.4-SNAPSHOT
-grpc-google-cloud-network-security-v1beta1:0.6.3:0.6.4-SNAPSHOT
-proto-google-cloud-network-security-v1beta1:0.6.3:0.6.4-SNAPSHOT
-proto-google-cloud-network-security-v1:0.6.3:0.6.4-SNAPSHOT
-grpc-google-cloud-network-security-v1:0.6.3:0.6.4-SNAPSHOT
+google-cloud-network-security:0.6.4:0.6.4
+grpc-google-cloud-network-security-v1beta1:0.6.4:0.6.4
+proto-google-cloud-network-security-v1beta1:0.6.4:0.6.4
+proto-google-cloud-network-security-v1:0.6.4:0.6.4
+grpc-google-cloud-network-security-v1:0.6.4:0.6.4