diff --git a/approvaltests-tests/pom.xml b/approvaltests-tests/pom.xml
index 2cc822a1..addf354f 100644
--- a/approvaltests-tests/pom.xml
+++ b/approvaltests-tests/pom.xml
@@ -37,7 +37,7 @@
         <dependency>
             <groupId>org.quartz-scheduler</groupId>
             <artifactId>quartz</artifactId>
-            <version>2.5.1</version>
+            <version>2.5.2</version>
             <optional>true</optional>
         </dependency>
         <dependency>
diff --git a/approvaltests-util-tests/pom.xml b/approvaltests-util-tests/pom.xml
index 19525610..dfbfaea1 100644
--- a/approvaltests-util-tests/pom.xml
+++ b/approvaltests-util-tests/pom.xml
@@ -65,7 +65,7 @@
         <dependency>
             <groupId>org.quartz-scheduler</groupId>
             <artifactId>quartz</artifactId>
-            <version>2.5.1</version>
+            <version>2.5.2</version>
             <scope>test</scope>
         </dependency>
     </dependencies>
diff --git a/approvaltests-util/pom.xml b/approvaltests-util/pom.xml
index adf8e336..27ca4ad0 100644
--- a/approvaltests-util/pom.xml
+++ b/approvaltests-util/pom.xml
@@ -58,7 +58,7 @@
         <dependency>
             <groupId>org.quartz-scheduler</groupId>
             <artifactId>quartz</artifactId>
-            <version>2.5.1</version>
+            <version>2.5.2</version>
             <optional>true</optional>
         </dependency>
         <dependency>
diff --git a/approvaltests/pom.xml b/approvaltests/pom.xml
index 2cbe349c..5c1018a3 100644
--- a/approvaltests/pom.xml
+++ b/approvaltests/pom.xml
@@ -96,7 +96,7 @@
         <dependency>
             <groupId>org.quartz-scheduler</groupId>
             <artifactId>quartz</artifactId>
-            <version>2.5.1</version>
+            <version>2.5.2</version>
             <scope>compile</scope>
             <optional>true</optional>
         </dependency>