diff --git a/amazon-kinesis-client-multilang/pom.xml b/amazon-kinesis-client-multilang/pom.xml
index a91a9a6b..7ccaa267 100644
--- a/amazon-kinesis-client-multilang/pom.xml
+++ b/amazon-kinesis-client-multilang/pom.xml
@@ -78,7 +78,7 @@
     <dependency>
       <groupId>ch.qos.logback</groupId>
       <artifactId>logback-classic</artifactId>
-      <version>1.3.0</version>
+      <version>1.4.3</version>
     </dependency>
     <dependency>
       <groupId>com.beust</groupId>
diff --git a/amazon-kinesis-client/pom.xml b/amazon-kinesis-client/pom.xml
index 512daef0..d1179d75 100644
--- a/amazon-kinesis-client/pom.xml
+++ b/amazon-kinesis-client/pom.xml
@@ -152,7 +152,7 @@
     <dependency>
       <groupId>ch.qos.logback</groupId>
       <artifactId>logback-classic</artifactId>
-      <version>1.3.0</version>
+      <version>1.4.3</version>
       <scope>test</scope>
     </dependency>