diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index de6286e2..73f9578f 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -98,7 +98,7 @@ touch Example.java
 Add the example you want to test to Example.java, including the headers at the top of the file.
 
 ``` bash
-javac -classpath ../repo/com/sendgrid/4.9.0/sendgrid-4.9.0-jar.jar:. Example.java && java -classpath ../repo/com/sendgrid/4.9.0/sendgrid-4.9.0-jar.jar:. Example
+javac -classpath ../repo/com/sendgrid/4.9.1/sendgrid-4.9.1-jar.jar:. Example.java && java -classpath ../repo/com/sendgrid/4.9.1/sendgrid-4.9.1-jar.jar:. Example
 ```
 
 <a name="understanding-the-codebase"></a>
diff --git a/README.md b/README.md
index 5d9f56e1..090fa97d 100644
--- a/README.md
+++ b/README.md
@@ -67,7 +67,7 @@ Add the following to your build.gradle file in the root of your project.
 ...
 dependencies {
   ...
-  implementation 'com.sendgrid:sendgrid-java:4.9.0'
+  implementation 'com.sendgrid:sendgrid-java:4.9.1'
 }
 
 repositories {
@@ -86,7 +86,7 @@ mvn install
 
 You can just drop the jar file in. It's a fat jar - it has all the dependencies built in.
 
-[sendgrid-java.jar](https://github.com/sendgrid/sendgrid-java/releases/download/4.9.0/sendgrid-java.jar)
+[sendgrid-java.jar](https://github.com/sendgrid/sendgrid-java/releases/download/4.9.1/sendgrid-java.jar)
 
 ## Dependencies
 
diff --git a/pom.xml b/pom.xml
index 511082f4..ed93d8c9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -9,7 +9,7 @@
   <groupId>com.sendgrid</groupId>
   <artifactId>sendgrid-java</artifactId>
   <name>Twilio SendGrid Java helper library</name>
-  <version>4.9.0</version>
+  <version>4.9.1</version>
   <description>This Java module allows you to quickly and easily send emails through Twilio SendGrid using Java.</description>
   <url>https://github.com/sendgrid/sendgrid-java</url>
   <licenses>
@@ -26,7 +26,7 @@
     <url>https://github.com/sendgrid/sendgrid-java</url>
     <connection>scm:git:git@github.com:sendgrid/sendgrid-java.git</connection>
     <developerConnection>scm:git:git@github.com:sendgrid/sendgrid-java.git</developerConnection>
-    <tag>4.9.0</tag>
+    <tag>4.9.1</tag>
   </scm>
   <profiles>
     <profile>
diff --git a/src/main/java/com/sendgrid/BaseInterface.java b/src/main/java/com/sendgrid/BaseInterface.java
index 07db9f28..74c50fec 100644
--- a/src/main/java/com/sendgrid/BaseInterface.java
+++ b/src/main/java/com/sendgrid/BaseInterface.java
@@ -11,7 +11,7 @@
  */
 public abstract class BaseInterface implements SendGridAPI {
 
-  private static final String VERSION = "4.9.0";
+  private static final String VERSION = "4.9.1";
 
   private static final String USER_AGENT = "sendgrid/" + VERSION + ";java";
   private static final int RATE_LIMIT_RESPONSE_CODE = 429;
diff --git a/src/test/java/com/sendgrid/SendGridTest.java b/src/test/java/com/sendgrid/SendGridTest.java
index d55ece2b..73d1614d 100644
--- a/src/test/java/com/sendgrid/SendGridTest.java
+++ b/src/test/java/com/sendgrid/SendGridTest.java
@@ -43,7 +43,7 @@ public void testConstructWithClient() throws IOException {
   @Test
   public void testLibraryVersion() {
     SendGrid sg = new SendGrid(SENDGRID_API_KEY);
-    Assert.assertEquals(sg.getLibraryVersion(), "4.9.0");
+    Assert.assertEquals(sg.getLibraryVersion(), "4.9.1");
   }
 
   @Test