diff --git a/NOTICE b/NOTICE
index b8a6c84..83d341e 100644
--- a/NOTICE
+++ b/NOTICE
@@ -1,5 +1,5 @@
    Lambda Maven plugin
-   Copyright 2018 Sean N. Roy
+   Copyright 2021 Sean N. Roy
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
diff --git a/README.md b/README.md
index 0f651aa..c5320bd 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 ### Usage
 `group id: com.github.seanroy`<br />
 `artifact id: lambda-maven-plugin`<br />
-`version: 2.3.3`<br />
+`version: 2.3.4`<br />
 <br/><br/>
 Please note that the artifact has been renamed from lambduh-maven-plugin to
 lambda-maven-plugin.
@@ -220,6 +220,10 @@ to the file.  If you add more pom's as part of enhancing the test suite,
 please remember to add them to .gitignore.
 
 ### Releases
+2.3.4
+* Resolves [Issue 117](https://github.com/SeanRoy/lambda-maven-plugin/issues/117) https://github.com/juger89
+* Thanks [juger89@gmail.com](mailto:juger89@gmail.com)
+
 2.3.3
 * Added Support for SQS Trigger 
 
diff --git a/pom.xml b/pom.xml
index 2842c7d..d5b4252 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
     <groupId>com.github.seanroy</groupId>
     <artifactId>lambda-maven-plugin</artifactId>
     <packaging>maven-plugin</packaging>
-    <version>2.3.3</version>
+    <version>2.3.4</version>
 
     <name>lambda-maven-plugin Maven Mojo</name>
     <description>A maven plugin that deploys functions to AWS Lambda</description>
@@ -48,7 +48,7 @@
     </contributors>
 
     <properties>
-        <aws.version>1.11.271</aws.version>
+        <aws.version>1.12.68</aws.version>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     </properties>
 
@@ -148,12 +148,12 @@
 		<dependency>
 		  <groupId>com.amazonaws</groupId>
 		  <artifactId>aws-encryption-sdk-java</artifactId>
-		  <version>1.3.1</version>
+		  <version>2.2.0</version>
 		</dependency>
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>4.12</version>
+            <version>4.13.1</version>
             <scope>test</scope>
         </dependency>
         <dependency>
@@ -169,7 +169,7 @@
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>httpclient</artifactId>
-            <version>4.5.3</version>
+            <version>4.5.13</version>
         </dependency>
         <dependency>
 		    <groupId>com.google.code.gson</groupId>
@@ -262,7 +262,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-plugin-plugin</artifactId>
-                <version>3.4</version>
+                <version>3.6.1</version>
                 <executions>
                     <execution>
                         <id>default-descriptor</id>
diff --git a/src/main/java/com/github/seanroy/plugins/AbstractLambdaMojo.java b/src/main/java/com/github/seanroy/plugins/AbstractLambdaMojo.java
index a9aeb28..e6f86c7 100644
--- a/src/main/java/com/github/seanroy/plugins/AbstractLambdaMojo.java
+++ b/src/main/java/com/github/seanroy/plugins/AbstractLambdaMojo.java
@@ -17,6 +17,8 @@
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
+import com.amazonaws.services.lambda.model.GetFunctionRequest;
+import com.amazonaws.services.lambda.model.GetFunctionResult;
 import com.amazonaws.services.lambda.model.UpdateFunctionCodeRequest;
 import com.amazonaws.services.lambda.model.UpdateFunctionCodeResult;
 import com.amazonaws.services.s3.model.*;
@@ -293,6 +295,24 @@ void uploadJarToS3() throws Exception {
                 .withS3Key(fileName)
                 .withPublish(lambdaFunction.isPublish());
         UpdateFunctionCodeResult updateFunctionCodeResult = lambdaClient.updateFunctionCode(updateFunctionRequest);
+
+        // wait until the UpdateFunctionCode finishes processing to avoid com.amazonaws.services.lambda.model.ResourceConflictException. See: https://docs.aws.amazon.com/lambda/latest/dg/functions-states.html
+        GetFunctionRequest getFunctionRequest = new GetFunctionRequest()
+                .withFunctionName(lambdaFunction.getFunctionName());
+        GetFunctionResult getFunctionResult = lambdaClient.getFunction(getFunctionRequest);
+
+        while (!getFunctionResult.getConfiguration().getState().equals("Active")
+                || !getFunctionResult.getConfiguration().getLastUpdateStatus().equals("Successful")) {
+            try {
+                getLog().info(String.format("UpdateFunctionCode for %s is still processing <State: %s, LastUpdateStatus: %s>, waiting... ", lambdaFunction.getFunctionName(), getFunctionResult.getConfiguration().getState(), getFunctionResult.getConfiguration().getLastUpdateStatus()));
+                Thread.sleep(3000);
+                getFunctionResult = lambdaClient.getFunction(getFunctionRequest);
+            } catch (InterruptedException e) {
+                e.printStackTrace();
+            }
+        }
+        getLog().info("UpdateFunctionCode finished successfully for " + lambdaFunction.getFunctionName());
+
         return lambdaFunction
                 .withVersion(updateFunctionCodeResult.getVersion())
                 .withFunctionArn(updateFunctionCodeResult.getFunctionArn());
diff --git a/src/main/java/com/github/seanroy/utils/AWSEncryption.java b/src/main/java/com/github/seanroy/utils/AWSEncryption.java
index 045b79a..cfeb105 100644
--- a/src/main/java/com/github/seanroy/utils/AWSEncryption.java
+++ b/src/main/java/com/github/seanroy/utils/AWSEncryption.java
@@ -20,20 +20,20 @@ public AWSEncryption(String keyArn) {
     
     public String encryptString(String data) {
         // Instantiate the SDK
-        final AwsCrypto crypto = new AwsCrypto();
+        final AwsCrypto crypto = AwsCrypto.builder().build();
 
         // Set up the KmsMasterKeyProvider backed by the default credentials        
-        final KmsMasterKeyProvider prov = new KmsMasterKeyProvider(keyArn);
+        final KmsMasterKeyProvider prov = KmsMasterKeyProvider.builder().buildStrict(keyArn);
 
         return crypto.encryptString(prov, data).getResult();
     }
     
     public String decryptString(String cipherText) {
         // Instantiate the SDK
-        final AwsCrypto crypto = new AwsCrypto();
+        final AwsCrypto crypto = AwsCrypto.builder().build();
         
         // Set up the KmsMasterKeyProvider backed by the default credentials        
-        final KmsMasterKeyProvider prov = new KmsMasterKeyProvider(keyArn);
+        final KmsMasterKeyProvider prov = KmsMasterKeyProvider.builder().buildStrict(keyArn);
         
         // Decrypt the data
         final CryptoResult<String, KmsMasterKey> decryptResult = crypto.decryptString(prov, cipherText);
diff --git a/src/main/java/com/github/seanroy/utils/JsonUtil.java b/src/main/java/com/github/seanroy/utils/JsonUtil.java
index 18a672d..907b5ee 100644
--- a/src/main/java/com/github/seanroy/utils/JsonUtil.java
+++ b/src/main/java/com/github/seanroy/utils/JsonUtil.java
@@ -45,6 +45,6 @@ public static String toJson(Object message) throws JsonProcessingException {
     }
 
     public static <T> T fromJson(String body) throws IOException {
-        return mapper.readValue(body, new TypeReference<List<LambdaFunction>>(){});
+        return (T) mapper.readValue(body, new TypeReference<List<LambdaFunction>>(){});
     }
 }