diff --git a/lib/libraries.properties b/lib/libraries.properties
index 7964e69fe..b27826188 100644
--- a/lib/libraries.properties
+++ b/lib/libraries.properties
@@ -34,7 +34,7 @@ netrexx.sha256=1f99f054e9b1e412d29823088f3fa7cfce90a7af25d907a60a6d7908a6b97ea4
 # Versions of different libraries. Please keep in alphabetical order, except
 # when a specific dependency forces them to be out-of-order
 ivy.version=2.5.0
-ant-antunit.version=1.4
+ant-antunit.version=1.4.1
 antlr.version=2.7.7
 bcel.version=6.4.1
 bsf.version=2.4.0
diff --git a/lib/optional/ant-antunit-1.4.jar b/lib/optional/ant-antunit-1.4.1.jar
similarity index 84%
rename from lib/optional/ant-antunit-1.4.jar
rename to lib/optional/ant-antunit-1.4.1.jar
index 9a149e9f4..b5c14ddda 100644
Binary files a/lib/optional/ant-antunit-1.4.jar and b/lib/optional/ant-antunit-1.4.1.jar differ