diff --git a/java-dialogflow/CHANGELOG.md b/java-dialogflow/CHANGELOG.md
index 8f8e35b40898..923e1184362b 100644
--- a/java-dialogflow/CHANGELOG.md
+++ b/java-dialogflow/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [4.9.1](https://github.com/googleapis/java-dialogflow/compare/v4.9.0...v4.9.1) (2022-10-07)
+
+
+### Dependencies
+
+* Update dependency com.google.cloud:google-cloud-core to v2.8.20 ([#1030](https://github.com/googleapis/java-dialogflow/issues/1030)) ([86aad23](https://github.com/googleapis/java-dialogflow/commit/86aad238bab432a62a0ad58811479d6f0ae1a431))
+
 ## [4.9.0](https://github.com/googleapis/java-dialogflow/compare/v4.8.7...v4.9.0) (2022-10-05)
 
 
diff --git a/java-dialogflow/google-cloud-dialogflow-bom/pom.xml b/java-dialogflow/google-cloud-dialogflow-bom/pom.xml
index f1c7b9c7107d..7717221f4e19 100644
--- a/java-dialogflow/google-cloud-dialogflow-bom/pom.xml
+++ b/java-dialogflow/google-cloud-dialogflow-bom/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-dialogflow-bom</artifactId>
-  <version>4.9.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
+  <version>4.9.1</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
   <packaging>pom</packaging>
   <parent>
     <groupId>com.google.cloud</groupId>
@@ -52,27 +52,27 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-dialogflow</artifactId>
-        <version>4.9.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
+        <version>4.9.1</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-dialogflow-v2beta1</artifactId>
-        <version>0.107.1-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-dialogflow-v2beta1:current} -->
+        <version>0.107.1</version><!-- {x-version-update:grpc-google-cloud-dialogflow-v2beta1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-dialogflow-v2</artifactId>
-        <version>4.9.1-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-dialogflow-v2:current} -->
+        <version>4.9.1</version><!-- {x-version-update:grpc-google-cloud-dialogflow-v2:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-dialogflow-v2</artifactId>
-        <version>4.9.1-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-dialogflow-v2:current} -->
+        <version>4.9.1</version><!-- {x-version-update:proto-google-cloud-dialogflow-v2:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-dialogflow-v2beta1</artifactId>
-        <version>0.107.1-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-dialogflow-v2beta1:current} -->
+        <version>0.107.1</version><!-- {x-version-update:proto-google-cloud-dialogflow-v2beta1:current} -->
       </dependency>
     </dependencies>
   </dependencyManagement>
diff --git a/java-dialogflow/google-cloud-dialogflow/pom.xml b/java-dialogflow/google-cloud-dialogflow/pom.xml
index 0a8d1c66c491..85aef6413c94 100644
--- a/java-dialogflow/google-cloud-dialogflow/pom.xml
+++ b/java-dialogflow/google-cloud-dialogflow/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-dialogflow</artifactId>
-  <version>4.9.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
+  <version>4.9.1</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
   <packaging>jar</packaging>
   <name>Google Cloud Dialog Flow API</name>
   <url>https://github.com/googleapis/java-dialogflow</url>
@@ -11,7 +11,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-dialogflow-parent</artifactId>
-    <version>4.9.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
+    <version>4.9.1</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
   </parent>
   <properties>
     <site.installationModule>google-cloud-dialogflow</site.installationModule>
diff --git a/java-dialogflow/grpc-google-cloud-dialogflow-v2/pom.xml b/java-dialogflow/grpc-google-cloud-dialogflow-v2/pom.xml
index ea16fa34ce0e..7e907c71dc79 100644
--- a/java-dialogflow/grpc-google-cloud-dialogflow-v2/pom.xml
+++ b/java-dialogflow/grpc-google-cloud-dialogflow-v2/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>grpc-google-cloud-dialogflow-v2</artifactId>
-  <version>4.9.1-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-dialogflow-v2:current} -->
+  <version>4.9.1</version><!-- {x-version-update:grpc-google-cloud-dialogflow-v2:current} -->
   <name>grpc-google-cloud-dialogflow-v2</name>
   <description>GRPC library for grpc-google-cloud-dialogflow-v2</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-dialogflow-parent</artifactId>
-    <version>4.9.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
+    <version>4.9.1</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/java-dialogflow/grpc-google-cloud-dialogflow-v2beta1/pom.xml b/java-dialogflow/grpc-google-cloud-dialogflow-v2beta1/pom.xml
index a279bb9e1f6e..e21ee014fd5a 100644
--- a/java-dialogflow/grpc-google-cloud-dialogflow-v2beta1/pom.xml
+++ b/java-dialogflow/grpc-google-cloud-dialogflow-v2beta1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>grpc-google-cloud-dialogflow-v2beta1</artifactId>
-  <version>0.107.1-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-dialogflow-v2beta1:current} -->
+  <version>0.107.1</version><!-- {x-version-update:grpc-google-cloud-dialogflow-v2beta1:current} -->
   <name>grpc-google-cloud-dialogflow-v2beta1</name>
   <description>GRPC library for grpc-google-cloud-dialogflow-v2beta1</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-dialogflow-parent</artifactId>
-    <version>4.9.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
+    <version>4.9.1</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/java-dialogflow/pom.xml b/java-dialogflow/pom.xml
index 6cee8c964e65..c9d60e3c2bd5 100644
--- a/java-dialogflow/pom.xml
+++ b/java-dialogflow/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-dialogflow-parent</artifactId>
   <packaging>pom</packaging>
-  <version>4.9.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
+  <version>4.9.1</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
   <name>Google Cloud Dialog Flow API Parent</name>
   <url>https://github.com/googleapis/java-dialogflow</url>
   <description>
@@ -61,27 +61,27 @@
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-dialogflow-v2</artifactId>
-        <version>4.9.1-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-dialogflow-v2:current} -->
+        <version>4.9.1</version><!-- {x-version-update:proto-google-cloud-dialogflow-v2:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-dialogflow-v2beta1</artifactId>
-        <version>0.107.1-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-dialogflow-v2beta1:current} -->
+        <version>0.107.1</version><!-- {x-version-update:proto-google-cloud-dialogflow-v2beta1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-dialogflow-v2beta1</artifactId>
-        <version>0.107.1-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-dialogflow-v2beta1:current} -->
+        <version>0.107.1</version><!-- {x-version-update:grpc-google-cloud-dialogflow-v2beta1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-dialogflow-v2</artifactId>
-        <version>4.9.1-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-dialogflow-v2:current} -->
+        <version>4.9.1</version><!-- {x-version-update:grpc-google-cloud-dialogflow-v2:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-dialogflow</artifactId>
-        <version>4.9.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
+        <version>4.9.1</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.cloud</groupId>
diff --git a/java-dialogflow/proto-google-cloud-dialogflow-v2/pom.xml b/java-dialogflow/proto-google-cloud-dialogflow-v2/pom.xml
index a23536327fb2..a5abd88a260e 100644
--- a/java-dialogflow/proto-google-cloud-dialogflow-v2/pom.xml
+++ b/java-dialogflow/proto-google-cloud-dialogflow-v2/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>proto-google-cloud-dialogflow-v2</artifactId>
-  <version>4.9.1-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-dialogflow-v2:current} -->
+  <version>4.9.1</version><!-- {x-version-update:proto-google-cloud-dialogflow-v2:current} -->
   <name>proto-google-cloud-dialogflow-v2</name>
   <description>PROTO library for proto-google-cloud-dialogflow-v2</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-dialogflow-parent</artifactId>
-    <version>4.9.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
+    <version>4.9.1</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/java-dialogflow/proto-google-cloud-dialogflow-v2beta1/pom.xml b/java-dialogflow/proto-google-cloud-dialogflow-v2beta1/pom.xml
index 6a9881de4426..9ff4ea8259e9 100644
--- a/java-dialogflow/proto-google-cloud-dialogflow-v2beta1/pom.xml
+++ b/java-dialogflow/proto-google-cloud-dialogflow-v2beta1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>proto-google-cloud-dialogflow-v2beta1</artifactId>
-  <version>0.107.1-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-dialogflow-v2beta1:current} -->
+  <version>0.107.1</version><!-- {x-version-update:proto-google-cloud-dialogflow-v2beta1:current} -->
   <name>proto-google-cloud-dialogflow-v2beta1</name>
   <description>PROTO library for proto-google-cloud-dialogflow-v2beta1</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-dialogflow-parent</artifactId>
-    <version>4.9.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
+    <version>4.9.1</version><!-- {x-version-update:google-cloud-dialogflow:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/java-dialogflow/versions.txt b/java-dialogflow/versions.txt
index 6928b5b9ffd7..308ec47fe45b 100644
--- a/java-dialogflow/versions.txt
+++ b/java-dialogflow/versions.txt
@@ -1,8 +1,8 @@
 # Format:
 # module:released-version:current-version
 
-google-cloud-dialogflow:4.9.0:4.9.1-SNAPSHOT
-grpc-google-cloud-dialogflow-v2beta1:0.107.0:0.107.1-SNAPSHOT
-grpc-google-cloud-dialogflow-v2:4.9.0:4.9.1-SNAPSHOT
-proto-google-cloud-dialogflow-v2:4.9.0:4.9.1-SNAPSHOT
-proto-google-cloud-dialogflow-v2beta1:0.107.0:0.107.1-SNAPSHOT
+google-cloud-dialogflow:4.9.1:4.9.1
+grpc-google-cloud-dialogflow-v2beta1:0.107.1:0.107.1
+grpc-google-cloud-dialogflow-v2:4.9.1:4.9.1
+proto-google-cloud-dialogflow-v2:4.9.1:4.9.1
+proto-google-cloud-dialogflow-v2beta1:0.107.1:0.107.1