diff --git a/benchmark/pom.xml b/benchmark/pom.xml
index 56645dd93..86bd33d78 100644
--- a/benchmark/pom.xml
+++ b/benchmark/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <artifactId>google-cloud-bigquery-parent</artifactId>
     <groupId>com.google.cloud</groupId>
-    <version>2.2.0</version><!-- {x-version-update:google-cloud-bigquery:current} -->
+    <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigquery:current} -->
   </parent>
 
   <properties>
diff --git a/google-cloud-bigquery/clirr-ignored-differences.xml b/google-cloud-bigquery/clirr-ignored-differences.xml
deleted file mode 100644
index 5dba6ab7a..000000000
--- a/google-cloud-bigquery/clirr-ignored-differences.xml
+++ /dev/null
@@ -1,10 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!-- see http://www.mojohaus.org/clirr-maven-plugin/examples/ignored-differences.html -->
-<differences>
-  <difference>
-    <differenceType>7006</differenceType>
-    <className>com/google/cloud/bigquery/FormatOptions</className>
-    <method>com.google.cloud.bigquery.FormatOptions avro()</method>
-    <to>com.google.cloud.bigquery.AvroOptions</to>
-  </difference>
-</differences>
diff --git a/google-cloud-bigquery/pom.xml b/google-cloud-bigquery/pom.xml
index b88bb19a5..93f9cbc69 100644
--- a/google-cloud-bigquery/pom.xml
+++ b/google-cloud-bigquery/pom.xml
@@ -3,7 +3,7 @@
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-bigquery</artifactId>
-  <version>2.2.0</version><!-- {x-version-update:google-cloud-bigquery:current} -->
+  <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigquery:current} -->
   <packaging>jar</packaging>
   <name>BigQuery</name>
   <url>https://github.com/googleapis/java-bigquery</url>
@@ -11,7 +11,7 @@
   <parent>
     <groupId>com.google.cloud</groupId>
     <artifactId>google-cloud-bigquery-parent</artifactId>
-    <version>2.2.0</version><!-- {x-version-update:google-cloud-bigquery:current} -->
+    <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigquery:current} -->
   </parent>
   <properties>
     <site.installationModule>google-cloud-bigquery</site.installationModule>
diff --git a/pom.xml b/pom.xml
index b46a240f8..eb5f19d6e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
   <groupId>com.google.cloud</groupId>
   <artifactId>google-cloud-bigquery-parent</artifactId>
   <packaging>pom</packaging>
-  <version>2.2.0</version><!-- {x-version-update:google-cloud-bigquery:current} -->
+  <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigquery:current} -->
   <name>BigQuery Parent</name>
   <url>https://github.com/googleapis/java-bigquery</url>
   <description>
@@ -77,7 +77,7 @@
       <dependency>
         <groupId>com.google.cloud</groupId>
         <artifactId>google-cloud-bigquery</artifactId>
-        <version>2.2.0</version><!-- {x-version-update:google-cloud-bigquery:current} -->
+        <version>2.2.1-SNAPSHOT</version><!-- {x-version-update:google-cloud-bigquery:current} -->
       </dependency>
 
       <dependency>
diff --git a/samples/snapshot/pom.xml b/samples/snapshot/pom.xml
index b43dea32e..89c35a155 100644
--- a/samples/snapshot/pom.xml
+++ b/samples/snapshot/pom.xml
@@ -44,7 +44,7 @@
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>google-cloud-bigquery</artifactId>
-      <version>2.2.0</version>
+      <version>2.2.1-SNAPSHOT</version>
     </dependency>
     <!-- {x-version-update-end} -->
     <dependency>
diff --git a/versions.txt b/versions.txt
index bc8d5d4cc..29d25a9bf 100644
--- a/versions.txt
+++ b/versions.txt
@@ -1,4 +1,4 @@
 # Format:
 # module:released-version:current-version
 
-google-cloud-bigquery:2.2.0:2.2.0
\ No newline at end of file
+google-cloud-bigquery:2.2.0:2.2.1-SNAPSHOT
\ No newline at end of file