diff --git a/pom.xml b/pom.xml
index 246ad22..7128f34 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,9 +5,9 @@
         <awssdk.version>2.19.2</awssdk.version>
         <aws-java-sdk.version>1.12.370</aws-java-sdk.version>
         <kcl.version>2.5.2</kcl.version>
-        <netty.version>4.1.86.Final</netty.version>
+        <netty.version>4.1.94.Final</netty.version>
         <netty-reactive.version>2.0.6</netty-reactive.version>
-        <fasterxml-jackson.version>2.13.4</fasterxml-jackson.version>
+        <fasterxml-jackson.version>2.13.5</fasterxml-jackson.version>
         <logback.version>1.3.0</logback.version>
     </properties>
     <dependencies>
@@ -209,7 +209,7 @@
         <dependency>
             <groupId>com.google.guava</groupId>
             <artifactId>guava</artifactId>
-            <version>32.0.0-jre</version>
+            <version>32.1.1-jre</version>
         </dependency>
         <dependency>
             <groupId>com.google.code.findbugs</groupId>
@@ -239,7 +239,7 @@
         <dependency>
             <groupId>com.google.protobuf</groupId>
             <artifactId>protobuf-java</artifactId>
-            <version>3.21.5</version>
+            <version>3.21.7</version>
         </dependency>
         <dependency>
             <groupId>org.apache.commons</groupId>
diff --git a/setup.py b/setup.py
index 699d36d..b90b846 100644
--- a/setup.py
+++ b/setup.py
@@ -42,7 +42,7 @@
 
 PACKAGE_NAME = 'amazon_kclpy'
 JAR_DIRECTORY = os.path.join(PACKAGE_NAME, 'jars')
-PACKAGE_VERSION = '2.1.3'
+PACKAGE_VERSION = '2.1.4-SNAPSHOT'
 PYTHON_REQUIREMENTS = [
     'boto',
     # argparse is part of python2.7 but must be declared for python2.6
diff --git a/test/test_amazon_kclpy_input_output_integration.py b/test/test_amazon_kclpy_input_output_integration.py
index a4b4a88..97c5926 100644
--- a/test/test_amazon_kclpy_input_output_integration.py
+++ b/test/test_amazon_kclpy_input_output_integration.py
@@ -60,7 +60,7 @@ def shutdown(self, checkpointer, reason):
 
 
 def _strip_all_whitespace(s):
-    return re.sub('\s*', '', s)
+    return re.sub('\\s*', '', s)
 
 
 test_shard_id = "shardId-123"