diff --git a/approvaltests-tests/pom.xml b/approvaltests-tests/pom.xml
index 4e453161..a392a92d 100644
--- a/approvaltests-tests/pom.xml
+++ b/approvaltests-tests/pom.xml
@@ -242,7 +242,7 @@
             </plugin>
             <plugin>
                 <artifactId>maven-surefire-plugin</artifactId>
-                <version>3.5.5</version>
+                <version>3.5.6</version>
             </plugin>
         </plugins>
     </build>
diff --git a/approvaltests-util-tests/pom.xml b/approvaltests-util-tests/pom.xml
index 5c54d92d..cdd2a48a 100644
--- a/approvaltests-util-tests/pom.xml
+++ b/approvaltests-util-tests/pom.xml
@@ -82,7 +82,7 @@
             </plugin>
             <plugin>
                 <artifactId>maven-surefire-plugin</artifactId>
-                <version>3.5.5</version>
+                <version>3.5.6</version>
             </plugin>
         </plugins>
     </build>
diff --git a/pom.xml b/pom.xml
index ec322725..16f4fa1e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -118,7 +118,7 @@
             <!-- formatter_plugin_end -->
             <plugin>
                 <artifactId>maven-surefire-plugin</artifactId>
-                <version>3.5.5</version>
+                <version>3.5.6</version>
                 <configuration>
                     <argLine>-Duser.language=en -Duser.region=US</argLine>
                     <parallel>methods</parallel>
@@ -207,7 +207,7 @@
                     <plugin>
                         <groupId>org.apache.maven.plugins</groupId>
                         <artifactId>maven-surefire-plugin</artifactId>
-                        <version>3.5.5</version>
+                        <version>3.5.6</version>
                     </plugin>
                     <plugin>
                         <groupId>org.apache.maven.plugins</groupId>