diff --git a/java-compiler-testing/src/main/java/io/github/ascopes/jct/junit/AbstractCompilersProvider.java b/java-compiler-testing/src/main/java/io/github/ascopes/jct/junit/AbstractCompilersProvider.java
index 4485e767a..82180b67d 100644
--- a/java-compiler-testing/src/main/java/io/github/ascopes/jct/junit/AbstractCompilersProvider.java
+++ b/java-compiler-testing/src/main/java/io/github/ascopes/jct/junit/AbstractCompilersProvider.java
@@ -26,6 +26,7 @@
 import java.lang.reflect.InvocationTargetException;
 import java.util.stream.IntStream;
 import java.util.stream.Stream;
+import org.jspecify.annotations.Nullable;
 import org.junit.jupiter.api.extension.ExtensionContext;
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.ArgumentsProvider;
@@ -150,6 +151,7 @@ protected AbstractCompilersProvider() {
   }
 
   @Override
+  @SuppressWarnings("deprecation")
   public Stream<? extends Arguments> provideArguments(ExtensionContext context) {
     return IntStream
         .rangeClosed(minVersion, maxVersion)
@@ -158,6 +160,18 @@ public Stream<? extends Arguments> provideArguments(ExtensionContext context) {
         .map(Arguments::of);
   }
 
+  // Do not @Override as this does not exist prior to JUnit 5.13.
+  // Use a generic Object for the ParameterDeclarations argument as that
+  // also does not exist prior to JUnit 5.13, and we do not want to trigger
+  // NoClassDefFoundExceptions on older versions of JUnit.
+  @SuppressWarnings("override")
+  public Stream<? extends Arguments> provideArguments(
+      @Nullable Object parameters,
+      ExtensionContext context
+  ) {
+    return provideArguments(context);
+  }
+
   /**
    * Configure this provider with parameters from annotations.
    *
diff --git a/pom.xml b/pom.xml
index b4e1abccf..26e5ff5db 100644
--- a/pom.xml
+++ b/pom.xml
@@ -93,7 +93,7 @@
     <awaitility.version>4.3.0</awaitility.version>
     <fuzzywuzzy.version>1.4.0</fuzzywuzzy.version>
     <jspecify.version>1.0.0</jspecify.version>
-    <junit.version>5.12.2</junit.version>
+    <junit.version>5.13.1</junit.version>
     <memoryfilesystem.version>2.8.1</memoryfilesystem.version>
     <mockito.version>5.18.0</mockito.version>
     <slf4j.version>2.0.17</slf4j.version>