diff --git a/java-bigqueryconnection/google-cloud-bigqueryconnection-bom/pom.xml b/java-bigqueryconnection/google-cloud-bigqueryconnection-bom/pom.xml
index ebc703be4a58..a7b7821b5045 100644
--- a/java-bigqueryconnection/google-cloud-bigqueryconnection-bom/pom.xml
+++ b/java-bigqueryconnection/google-cloud-bigqueryconnection-bom/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-bigqueryconnection-bom</artifactId>
-  <version>2.5.5</version><!-- {x-version-update:google-cloud-bigqueryconnection:current} -->
+  <version>2.5.6-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigqueryconnection:current} -->
   <packaging>pom</packaging>
   <parent>
     <groupId>com.google.cloud</groupId>
@@ -52,27 +52,27 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-bigqueryconnection</artifactId>
-        <version>2.5.5</version><!-- {x-version-update:google-cloud-bigqueryconnection:current} -->
+        <version>2.5.6-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigqueryconnection:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-bigqueryconnection-v1</artifactId>
-        <version>2.5.5</version><!-- {x-version-update:grpc-google-cloud-bigqueryconnection-v1:current} -->
+        <version>2.5.6-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-bigqueryconnection-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-bigqueryconnection-v1beta1</artifactId>
-        <version>0.13.5</version><!-- {x-version-update:grpc-google-cloud-bigqueryconnection-v1beta1:current} -->
+        <version>0.13.6-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-bigqueryconnection-v1beta1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-bigqueryconnection-v1</artifactId>
-        <version>2.5.5</version><!-- {x-version-update:proto-google-cloud-bigqueryconnection-v1:current} -->
+        <version>2.5.6-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-bigqueryconnection-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-bigqueryconnection-v1beta1</artifactId>
-        <version>0.13.5</version><!-- {x-version-update:proto-google-cloud-bigqueryconnection-v1beta1:current} -->
+        <version>0.13.6-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-bigqueryconnection-v1beta1:current} -->
       </dependency>
     </dependencies>
   </dependencyManagement>
diff --git a/java-bigqueryconnection/google-cloud-bigqueryconnection/pom.xml b/java-bigqueryconnection/google-cloud-bigqueryconnection/pom.xml
index 76a3275c402d..428e0d5b4791 100644
--- a/java-bigqueryconnection/google-cloud-bigqueryconnection/pom.xml
+++ b/java-bigqueryconnection/google-cloud-bigqueryconnection/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-bigqueryconnection</artifactId>
-  <version>2.5.5</version><!-- {x-version-update:google-cloud-bigqueryconnection:current} -->
+  <version>2.5.6-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigqueryconnection:current} -->
   <packaging>jar</packaging>
   <name>Google Cloud BigQuery Connections</name>
   <url>https://github.com/googleapis/java-bigqueryconnection</url>
@@ -11,7 +11,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-bigqueryconnection-parent</artifactId>
-    <version>2.5.5</version><!-- {x-version-update:google-cloud-bigqueryconnection:current} -->
+    <version>2.5.6-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigqueryconnection:current} -->
   </parent>
   <properties>
     <site.installationModule>google-cloud-bigqueryconnection</site.installationModule>
diff --git a/java-bigqueryconnection/grpc-google-cloud-bigqueryconnection-v1/pom.xml b/java-bigqueryconnection/grpc-google-cloud-bigqueryconnection-v1/pom.xml
index cb3274c55c15..9eb09759432c 100644
--- a/java-bigqueryconnection/grpc-google-cloud-bigqueryconnection-v1/pom.xml
+++ b/java-bigqueryconnection/grpc-google-cloud-bigqueryconnection-v1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>grpc-google-cloud-bigqueryconnection-v1</artifactId>
-  <version>2.5.5</version><!-- {x-version-update:grpc-google-cloud-bigqueryconnection-v1:current} -->
+  <version>2.5.6-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-bigqueryconnection-v1:current} -->
   <name>grpc-google-cloud-bigqueryconnection-v1</name>
   <description>GRPC library for grpc-google-cloud-bigqueryconnection-v1</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-bigqueryconnection-parent</artifactId>
-    <version>2.5.5</version><!-- {x-version-update:google-cloud-bigqueryconnection:current} -->
+    <version>2.5.6-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigqueryconnection:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/java-bigqueryconnection/grpc-google-cloud-bigqueryconnection-v1beta1/pom.xml b/java-bigqueryconnection/grpc-google-cloud-bigqueryconnection-v1beta1/pom.xml
index 31653fb4fa34..6d02ba0b9f2f 100644
--- a/java-bigqueryconnection/grpc-google-cloud-bigqueryconnection-v1beta1/pom.xml
+++ b/java-bigqueryconnection/grpc-google-cloud-bigqueryconnection-v1beta1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>grpc-google-cloud-bigqueryconnection-v1beta1</artifactId>
-  <version>0.13.5</version><!-- {x-version-update:grpc-google-cloud-bigqueryconnection-v1beta1:current} -->
+  <version>0.13.6-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-bigqueryconnection-v1beta1:current} -->
   <name>grpc-google-cloud-bigqueryconnection-v1beta1</name>
   <description>GRPC library for grpc-google-cloud-bigqueryconnection-v1beta1</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-bigqueryconnection-parent</artifactId>
-    <version>2.5.5</version><!-- {x-version-update:google-cloud-bigqueryconnection:current} -->
+    <version>2.5.6-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigqueryconnection:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/java-bigqueryconnection/pom.xml b/java-bigqueryconnection/pom.xml
index 2c53ffb9004a..b48ba8371d5a 100644
--- a/java-bigqueryconnection/pom.xml
+++ b/java-bigqueryconnection/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-bigqueryconnection-parent</artifactId>
   <packaging>pom</packaging>
-  <version>2.5.5</version><!-- {x-version-update:google-cloud-bigqueryconnection:current} -->
+  <version>2.5.6-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigqueryconnection:current} -->
   <name>Google Cloud BigQuery Connections Parent</name>
   <url>https://github.com/googleapis/java-bigqueryconnection</url>
   <description>
@@ -62,27 +62,27 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-bigqueryconnection</artifactId>
-        <version>2.5.5</version><!-- {x-version-update:google-cloud-bigqueryconnection:current} -->
+        <version>2.5.6-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigqueryconnection:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-bigqueryconnection-v1</artifactId>
-        <version>2.5.5</version><!-- {x-version-update:proto-google-cloud-bigqueryconnection-v1:current} -->
+        <version>2.5.6-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-bigqueryconnection-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-bigqueryconnection-v1</artifactId>
-        <version>2.5.5</version><!-- {x-version-update:grpc-google-cloud-bigqueryconnection-v1:current} -->
+        <version>2.5.6-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-bigqueryconnection-v1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-bigqueryconnection-v1beta1</artifactId>
-        <version>0.13.5</version><!-- {x-version-update:proto-google-cloud-bigqueryconnection-v1beta1:current} -->
+        <version>0.13.6-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-bigqueryconnection-v1beta1:current} -->
       </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>grpc-google-cloud-bigqueryconnection-v1beta1</artifactId>
-        <version>0.13.5</version><!-- {x-version-update:grpc-google-cloud-bigqueryconnection-v1beta1:current} -->
+        <version>0.13.6-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-bigqueryconnection-v1beta1:current} -->
       </dependency>
 
       <dependency>
diff --git a/java-bigqueryconnection/proto-google-cloud-bigqueryconnection-v1/pom.xml b/java-bigqueryconnection/proto-google-cloud-bigqueryconnection-v1/pom.xml
index baa90d80eaad..045b43669788 100644
--- a/java-bigqueryconnection/proto-google-cloud-bigqueryconnection-v1/pom.xml
+++ b/java-bigqueryconnection/proto-google-cloud-bigqueryconnection-v1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>proto-google-cloud-bigqueryconnection-v1</artifactId>
-  <version>2.5.5</version><!-- {x-version-update:proto-google-cloud-bigqueryconnection-v1:current} -->
+  <version>2.5.6-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-bigqueryconnection-v1:current} -->
   <name>proto-google-cloud-bigqueryconnection-v1</name>
   <description>PROTO library for proto-google-cloud-bigqueryconnection-v1</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-bigqueryconnection-parent</artifactId>
-    <version>2.5.5</version><!-- {x-version-update:google-cloud-bigqueryconnection:current} -->
+    <version>2.5.6-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigqueryconnection:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/java-bigqueryconnection/proto-google-cloud-bigqueryconnection-v1beta1/pom.xml b/java-bigqueryconnection/proto-google-cloud-bigqueryconnection-v1beta1/pom.xml
index eacda5644ec9..90211b8563d2 100644
--- a/java-bigqueryconnection/proto-google-cloud-bigqueryconnection-v1beta1/pom.xml
+++ b/java-bigqueryconnection/proto-google-cloud-bigqueryconnection-v1beta1/pom.xml
@@ -4,13 +4,13 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.api.grpc</groupId>
   <artifactId>proto-google-cloud-bigqueryconnection-v1beta1</artifactId>
-  <version>0.13.5</version><!-- {x-version-update:proto-google-cloud-bigqueryconnection-v1beta1:current} -->
+  <version>0.13.6-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-bigqueryconnection-v1beta1:current} -->
   <name>proto-google-cloud-bigqueryconnection-v1beta1</name>
   <description>PROTO library for proto-google-cloud-bigqueryconnection-v1beta1</description>
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-bigqueryconnection-parent</artifactId>
-    <version>2.5.5</version><!-- {x-version-update:google-cloud-bigqueryconnection:current} -->
+    <version>2.5.6-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigqueryconnection:current} -->
   </parent>
   <dependencies>
     <dependency>
diff --git a/java-bigqueryconnection/samples/snapshot/pom.xml b/java-bigqueryconnection/samples/snapshot/pom.xml
index 85172733b576..a412d44a8851 100644
--- a/java-bigqueryconnection/samples/snapshot/pom.xml
+++ b/java-bigqueryconnection/samples/snapshot/pom.xml
@@ -28,7 +28,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-bigqueryconnection</artifactId>
-      <version>2.5.5</version>
+      <version>2.5.6-SNAPSHOT</version>
     </dependency>
     <!-- {x-version-update-end} -->
 
diff --git a/java-bigqueryconnection/versions.txt b/java-bigqueryconnection/versions.txt
index 86d966379006..ee9e8c725881 100644
--- a/java-bigqueryconnection/versions.txt
+++ b/java-bigqueryconnection/versions.txt
@@ -1,8 +1,8 @@
 # Format:
 # module:released-version:current-version
 
-google-cloud-bigqueryconnection:2.5.5:2.5.5
-grpc-google-cloud-bigqueryconnection-v1:2.5.5:2.5.5
-grpc-google-cloud-bigqueryconnection-v1beta1:0.13.5:0.13.5
-proto-google-cloud-bigqueryconnection-v1:2.5.5:2.5.5
-proto-google-cloud-bigqueryconnection-v1beta1:0.13.5:0.13.5
+google-cloud-bigqueryconnection:2.5.5:2.5.6-SNAPSHOT
+grpc-google-cloud-bigqueryconnection-v1:2.5.5:2.5.6-SNAPSHOT
+grpc-google-cloud-bigqueryconnection-v1beta1:0.13.5:0.13.6-SNAPSHOT
+proto-google-cloud-bigqueryconnection-v1:2.5.5:2.5.6-SNAPSHOT
+proto-google-cloud-bigqueryconnection-v1beta1:0.13.5:0.13.6-SNAPSHOT