diff --git a/src/test/java/uk/ac/rhul/cs/javatester/UnitTests.java b/src/test/java/uk/ac/rhul/cs/javatester/UnitTests.java
index f99bf0b7f0d1c11ace5df97174b6cfd7b4330d82..6c36f6e2e7b860024c8fbc1443ac5286ab1bc7c6 100644
--- a/src/test/java/uk/ac/rhul/cs/javatester/UnitTests.java
+++ b/src/test/java/uk/ac/rhul/cs/javatester/UnitTests.java
@@ -36,7 +36,7 @@ public class UnitTests {
         = "uk.ac.rhul.cs.javatester.solution.NullPtrMethod";
 
     @Rule
-    public Timeout globalTimeout = Timeout.seconds(10);
+    public Timeout globalTimeout = Timeout.seconds(20);
 
     @Test
     public void testMainClassFail() throws IOException {