diff --git a/fernet-java8/pom.xml b/fernet-java8/pom.xml
index 4180fff0..528d9c5f 100644
--- a/fernet-java8/pom.xml
+++ b/fernet-java8/pom.xml
@@ -97,7 +97,7 @@
     <dependency>
       <groupId>ch.qos.logback</groupId>
       <artifactId>logback-classic</artifactId>
-      <version>1.3.14</version>
+      <version>1.6.6</version>
       <scope>test</scope>
     </dependency>
     <dependency>
diff --git a/fernet-jersey-auth/pom.xml b/fernet-jersey-auth/pom.xml
index 95bf89d9..5271a056 100644
--- a/fernet-jersey-auth/pom.xml
+++ b/fernet-jersey-auth/pom.xml
@@ -86,7 +86,7 @@
     <dependency>
         <groupId>ch.qos.logback</groupId>
         <artifactId>logback-classic</artifactId>
-        <version>1.3.14</version>
+        <version>1.6.6</version>
         <scope>test</scope>
     </dependency>
     <dependency>