diff --git a/ocpp-v1_6-test/pom.xml b/ocpp-v1_6-test/pom.xml
index 4608bff6..8172d9dc 100644
--- a/ocpp-v1_6-test/pom.xml
+++ b/ocpp-v1_6-test/pom.xml
@@ -77,7 +77,7 @@
 		<dependency>
 		    <groupId>ch.qos.logback</groupId>
 		    <artifactId>logback-core</artifactId>
-		    <version>1.4.14</version>
+		    <version>1.5.1</version>
             <scope>test</scope>
 		</dependency>
 		<dependency>
diff --git a/ocpp-v2-test/pom.xml b/ocpp-v2-test/pom.xml
index f2b8316a..02d74a84 100644
--- a/ocpp-v2-test/pom.xml
+++ b/ocpp-v2-test/pom.xml
@@ -103,7 +103,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-core</artifactId>
-            <version>1.4.14</version>
+            <version>1.5.1</version>
             <scope>test</scope>
         </dependency>
         <dependency>
diff --git a/ocpp-v2_0-test/pom.xml b/ocpp-v2_0-test/pom.xml
index c1a3c17e..41af8573 100644
--- a/ocpp-v2_0-test/pom.xml
+++ b/ocpp-v2_0-test/pom.xml
@@ -78,7 +78,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-core</artifactId>
-            <version>1.4.14</version>
+            <version>1.5.1</version>
             <scope>test</scope>
         </dependency>
         <dependency>