diff --git a/CHANGELOG.md b/CHANGELOG.md
index 40f4fe33..dd8f9f56 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+### [1.3.3](https://github.com/googleapis/java-iam/compare/v1.3.2...v1.3.3) (2022-04-22)
+
+
+### Dependencies
+
+* update dependency com.google.protobuf:protobuf-java to v3.20.1 ([#337](https://github.com/googleapis/java-iam/issues/337)) ([83302e1](https://github.com/googleapis/java-iam/commit/83302e12860ca82234bd3f74234c373164e27ffb))
+
 ### [1.3.2](https://github.com/googleapis/java-iam/compare/v1.3.1...v1.3.2) (2022-04-15)
 
 
diff --git a/grpc-google-iam-v1/pom.xml b/grpc-google-iam-v1/pom.xml
index ee79415a..851d8b4c 100644
--- a/grpc-google-iam-v1/pom.xml
+++ b/grpc-google-iam-v1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>grpc-google-iam-v1</artifactId>
-  <version>1.3.2</version><!-- {x-version-update:proto-google-iam-v1:current} -->
+  <version>1.3.3</version><!-- {x-version-update:proto-google-iam-v1:current} -->
   <name>grpc-google-iam-v1</name>
   <description>GRPC library for grpc-google-iam-v1</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-iam-parent</artifactId>
-    <version>1.3.2</version><!-- {x-version-update:proto-google-iam-v1:current} -->
+    <version>1.3.3</version><!-- {x-version-update:proto-google-iam-v1:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/pom.xml b/pom.xml
index 4d3d5a44..812cd134 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.google.cloud</groupId>
   <artifactId>google-iam-parent</artifactId>
   <packaging>pom</packaging>
-  <version>1.3.2</version><!-- {x-version-update:proto-google-iam-v1:current} -->
+  <version>1.3.3</version><!-- {x-version-update:proto-google-iam-v1:current} -->
   <name>Google IAM Parent</name>
   <url>https://github.com/googleapis/java-iam</url>
   <description>
@@ -14,7 +14,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-shared-config</artifactId>
-    <version>1.3.2</version>
+    <version>1.3.3</version>
   </parent>
 
   <developers>
@@ -77,7 +77,7 @@
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-iam-v1</artifactId>
-        <version>1.3.2</version><!-- {x-version-update:proto-google-iam-v1:current} -->
+        <version>1.3.3</version><!-- {x-version-update:proto-google-iam-v1:current} -->
       </dependency>
 
       <dependency>
@@ -126,7 +126,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-javadoc-plugin</artifactId>
-        <version>3.3.2</version>
+        <version>3.4.0</version>
         <reportSets>
           <reportSet>
             <id>html</id>
diff --git a/proto-google-iam-v1/build.gradle b/proto-google-iam-v1/build.gradle
index 6be2f6d0..b7533753 100644
--- a/proto-google-iam-v1/build.gradle
+++ b/proto-google-iam-v1/build.gradle
@@ -18,7 +18,7 @@ repositories {
 }
 
 dependencies {
-  compile 'com.google.protobuf:protobuf-java:3.19.4'
+  compile 'com.google.protobuf:protobuf-java:3.20.1'
   compile 'com.google.api:api-common:2.1.5'
   compile project(':proto-google-common-protos')
 }
diff --git a/proto-google-iam-v1/pom.xml b/proto-google-iam-v1/pom.xml
index 7866e544..ac642bdd 100644
--- a/proto-google-iam-v1/pom.xml
+++ b/proto-google-iam-v1/pom.xml
@@ -3,13 +3,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>proto-google-iam-v1</artifactId>
-  <version>1.3.2</version><!-- {x-version-update:proto-google-iam-v1:current} -->
+  <version>1.3.3</version><!-- {x-version-update:proto-google-iam-v1:current} -->
   <name>proto-google-iam-v1</name>
   <description>PROTO library for proto-google-iam-v1</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-iam-parent</artifactId>
-    <version>1.3.2</version><!-- {x-version-update:proto-google-iam-v1:current} -->
+    <version>1.3.3</version><!-- {x-version-update:proto-google-iam-v1:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/versions.txt b/versions.txt
index 429c8adb..d5a0b97d 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,5 +1,5 @@
 # Format:
 # module:released-version:current-version
 
-proto-google-iam-v1:1.3.2:1.3.2
-grpc-google-iam-v1:1.3.2:1.3.2
+proto-google-iam-v1:1.3.3:1.3.3
+grpc-google-iam-v1:1.3.3:1.3.3