diff --git a/CHANGELOG.md b/CHANGELOG.md
index 188ce925..debbdd91 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+### [1.8.1](https://github.com/googleapis/java-datacatalog/compare/v1.8.0...v1.8.1) (2022-05-26)
+
+
+### Dependencies
+
+* update dependency com.google.protobuf:protobuf-java-util to v3.21.0 ([#804](https://github.com/googleapis/java-datacatalog/issues/804)) ([ad91ffa](https://github.com/googleapis/java-datacatalog/commit/ad91ffa697f9d583528955d879afe018507f1557))
+
 ## [1.8.0](https://github.com/googleapis/java-datacatalog/compare/v1.7.3...v1.8.0) (2022-05-24)
 
 
diff --git a/google-cloud-datacatalog-bom/pom.xml b/google-cloud-datacatalog-bom/pom.xml
index 6bcf103b..6d0405cf 100644
--- a/google-cloud-datacatalog-bom/pom.xml
+++ b/google-cloud-datacatalog-bom/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-datacatalog-bom</artifactId>
-  <version>1.8.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-datacatalog:current} -->
+  <version>1.8.1</version><!-- {x-version-update:google-cloud-datacatalog:current} -->
   <packaging>pom</packaging>
   <parent>
     <groupId>com.google.cloud</groupId>
@@ -52,27 +52,27 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-datacatalog</artifactId>
-        <version>1.8.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-datacatalog:current} -->
+        <version>1.8.1</version><!-- {x-version-update:google-cloud-datacatalog:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-datacatalog-v1</artifactId>
-        <version>1.8.1-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-datacatalog-v1:current} -->
+        <version>1.8.1</version><!-- {x-version-update:grpc-google-cloud-datacatalog-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-datacatalog-v1beta1</artifactId>
-        <version>0.45.1-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-datacatalog-v1beta1:current} -->
+        <version>0.45.1</version><!-- {x-version-update:grpc-google-cloud-datacatalog-v1beta1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-datacatalog-v1</artifactId>
-        <version>1.8.1-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-datacatalog-v1:current} -->
+        <version>1.8.1</version><!-- {x-version-update:proto-google-cloud-datacatalog-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-datacatalog-v1beta1</artifactId>
-        <version>0.45.1-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-datacatalog-v1beta1:current} -->
+        <version>0.45.1</version><!-- {x-version-update:proto-google-cloud-datacatalog-v1beta1:current} -->
       </dependency>
     </dependencies>
   </dependencyManagement>
diff --git a/google-cloud-datacatalog/pom.xml b/google-cloud-datacatalog/pom.xml
index 145410f3..6a11cfb5 100644
--- a/google-cloud-datacatalog/pom.xml
+++ b/google-cloud-datacatalog/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-datacatalog</artifactId>
-  <version>1.8.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-datacatalog:current} -->
+  <version>1.8.1</version><!-- {x-version-update:google-cloud-datacatalog:current} -->
   <packaging>jar</packaging>
   <name>Google Cloud Data Catalog</name>
   <url>https://github.com/googleapis/java-datacatalog</url>
@@ -11,7 +11,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-datacatalog-parent</artifactId>
-    <version>1.8.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-datacatalog:current} -->
+    <version>1.8.1</version><!-- {x-version-update:google-cloud-datacatalog:current} -->
   </parent>
   <properties>
     <site.installationModule>google-cloud-datacatalog</site.installationModule>
diff --git a/grpc-google-cloud-datacatalog-v1/pom.xml b/grpc-google-cloud-datacatalog-v1/pom.xml
index 34e74faa..400ad99b 100644
--- a/grpc-google-cloud-datacatalog-v1/pom.xml
+++ b/grpc-google-cloud-datacatalog-v1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>grpc-google-cloud-datacatalog-v1</artifactId>
-  <version>1.8.1-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-datacatalog-v1:current} -->
+  <version>1.8.1</version><!-- {x-version-update:grpc-google-cloud-datacatalog-v1:current} -->
   <name>grpc-google-cloud-datacatalog-v1</name>
   <description>GRPC library for grpc-google-cloud-datacatalog-v1</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-datacatalog-parent</artifactId>
-    <version>1.8.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-datacatalog:current} -->
+    <version>1.8.1</version><!-- {x-version-update:google-cloud-datacatalog:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/grpc-google-cloud-datacatalog-v1beta1/pom.xml b/grpc-google-cloud-datacatalog-v1beta1/pom.xml
index 9c7a6760..7dd8dc53 100644
--- a/grpc-google-cloud-datacatalog-v1beta1/pom.xml
+++ b/grpc-google-cloud-datacatalog-v1beta1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>grpc-google-cloud-datacatalog-v1beta1</artifactId>
-  <version>0.45.1-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-datacatalog-v1beta1:current} -->
+  <version>0.45.1</version><!-- {x-version-update:grpc-google-cloud-datacatalog-v1beta1:current} -->
   <name>grpc-google-cloud-datacatalog-v1beta1</name>
   <description>GRPC library for grpc-google-cloud-datacatalog-v1beta1</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-datacatalog-parent</artifactId>
-    <version>1.8.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-datacatalog:current} -->
+    <version>1.8.1</version><!-- {x-version-update:google-cloud-datacatalog:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/pom.xml b/pom.xml
index 6d414780..a55a2655 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-datacatalog-parent</artifactId>
   <packaging>pom</packaging>
-  <version>1.8.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-datacatalog:current} -->
+  <version>1.8.1</version><!-- {x-version-update:google-cloud-datacatalog:current} -->
   <name>Google Cloud Data Catalog Parent</name>
   <url>https://github.com/googleapis/java-datacatalog</url>
   <description>
@@ -61,27 +61,27 @@
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-datacatalog-v1</artifactId>
-        <version>1.8.1-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-datacatalog-v1:current} -->
+        <version>1.8.1</version><!-- {x-version-update:proto-google-cloud-datacatalog-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-datacatalog-v1beta1</artifactId>
-        <version>0.45.1-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-datacatalog-v1beta1:current} -->
+        <version>0.45.1</version><!-- {x-version-update:proto-google-cloud-datacatalog-v1beta1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-datacatalog-v1</artifactId>
-        <version>1.8.1-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-datacatalog-v1:current} -->
+        <version>1.8.1</version><!-- {x-version-update:grpc-google-cloud-datacatalog-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-datacatalog-v1beta1</artifactId>
-        <version>0.45.1-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-datacatalog-v1beta1:current} -->
+        <version>0.45.1</version><!-- {x-version-update:grpc-google-cloud-datacatalog-v1beta1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-datacatalog</artifactId>
-        <version>1.8.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-datacatalog:current} -->
+        <version>1.8.1</version><!-- {x-version-update:google-cloud-datacatalog:current} -->
       </dependency>
 
       <dependency>
diff --git a/proto-google-cloud-datacatalog-v1/pom.xml b/proto-google-cloud-datacatalog-v1/pom.xml
index 8f5624d5..9b5ee466 100644
--- a/proto-google-cloud-datacatalog-v1/pom.xml
+++ b/proto-google-cloud-datacatalog-v1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>proto-google-cloud-datacatalog-v1</artifactId>
-  <version>1.8.1-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-datacatalog-v1:current} -->
+  <version>1.8.1</version><!-- {x-version-update:proto-google-cloud-datacatalog-v1:current} -->
   <name>proto-google-cloud-datacatalog-v1</name>
   <description>PROTO library for proto-google-cloud-datacatalog-v1</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-datacatalog-parent</artifactId>
-    <version>1.8.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-datacatalog:current} -->
+    <version>1.8.1</version><!-- {x-version-update:google-cloud-datacatalog:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/proto-google-cloud-datacatalog-v1beta1/pom.xml b/proto-google-cloud-datacatalog-v1beta1/pom.xml
index 6632b394..81375b45 100644
--- a/proto-google-cloud-datacatalog-v1beta1/pom.xml
+++ b/proto-google-cloud-datacatalog-v1beta1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>proto-google-cloud-datacatalog-v1beta1</artifactId>
-  <version>0.45.1-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-datacatalog-v1beta1:current} -->
+  <version>0.45.1</version><!-- {x-version-update:proto-google-cloud-datacatalog-v1beta1:current} -->
   <name>proto-google-cloud-datacatalog-v1beta1</name>
   <description>PROTO library for proto-google-cloud-datacatalog-v1beta1</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-datacatalog-parent</artifactId>
-    <version>1.8.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-datacatalog:current} -->
+    <version>1.8.1</version><!-- {x-version-update:google-cloud-datacatalog:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/versions.txt b/versions.txt
index eeeb08eb..6fd1b25e 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,8 +1,8 @@
 # Format:
 # module:released-version:current-version
 
-google-cloud-datacatalog:1.8.0:1.8.1-SNAPSHOT
-grpc-google-cloud-datacatalog-v1:1.8.0:1.8.1-SNAPSHOT
-grpc-google-cloud-datacatalog-v1beta1:0.45.0:0.45.1-SNAPSHOT
-proto-google-cloud-datacatalog-v1:1.8.0:1.8.1-SNAPSHOT
-proto-google-cloud-datacatalog-v1beta1:0.45.0:0.45.1-SNAPSHOT
+google-cloud-datacatalog:1.8.1:1.8.1
+grpc-google-cloud-datacatalog-v1:1.8.1:1.8.1
+grpc-google-cloud-datacatalog-v1beta1:0.45.1:0.45.1
+proto-google-cloud-datacatalog-v1:1.8.1:1.8.1
+proto-google-cloud-datacatalog-v1beta1:0.45.1:0.45.1