diff --git a/filter/algebra/thirdpartylibs.xml b/filter/algebra/thirdpartylibs.xml
index d7306d91a4a..93970af442c 100644
--- a/filter/algebra/thirdpartylibs.xml
+++ b/filter/algebra/thirdpartylibs.xml
@@ -5,6 +5,6 @@
       <name>WeBWorK</name>
       <license>GPL</license>
       <version>2.4.9+</version>
-      <licenseversion>2</licenseversion>
+      <licenseversion>2.0+</licenseversion>
   </library>
 </libraries>