diff --git a/.idea/misc.xml b/.idea/misc.xml
index e24323e..c1a40d8 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -8,5 +8,5 @@
       </list>
     </option>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="corretto-11" project-jdk-type="JavaSDK" />
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" project-jdk-name="corretto-17" project-jdk-type="JavaSDK" />
 </project>
\ No newline at end of file
diff --git a/src/test/java/com/zepben/vertxutils/json/filter/FilterSpecificationTest.java b/src/test/java/com/zepben/vertxutils/json/filter/FilterSpecificationTest.java
index 1b50c88..1985fcc 100644
--- a/src/test/java/com/zepben/vertxutils/json/filter/FilterSpecificationTest.java
+++ b/src/test/java/com/zepben/vertxutils/json/filter/FilterSpecificationTest.java
@@ -17,8 +17,7 @@
 
 public class FilterSpecificationTest {
 
-    @RegisterExtension
-    SystemLogExtension systemOut = SystemLogExtension.SYSTEM_OUT.captureLog().muteOnSuccess();
+    @RegisterExtension static SystemLogExtension systemOut = SystemLogExtension.SYSTEM_OUT.captureLog().muteOnSuccess();
 
     @Test
     public void parsesCorrectly() throws Exception {
diff --git a/src/test/java/com/zepben/vertxutils/routing/RouteVersionTest.java b/src/test/java/com/zepben/vertxutils/routing/RouteVersionTest.java
index 7579640..d96039a 100644
--- a/src/test/java/com/zepben/vertxutils/routing/RouteVersionTest.java
+++ b/src/test/java/com/zepben/vertxutils/routing/RouteVersionTest.java
@@ -17,8 +17,7 @@
 
 public class RouteVersionTest {
 
-    @RegisterExtension
-    SystemLogExtension systemOut = SystemLogExtension.SYSTEM_OUT.captureLog().muteOnSuccess();
+    @RegisterExtension static SystemLogExtension systemOut = SystemLogExtension.SYSTEM_OUT.captureLog().muteOnSuccess();
 
     @Test
     public void canCheckForVersion() {