diff --git a/packages/tool_util/requirements.txt b/packages/tool_util/requirements.txt
index c0fcc5820c5..d279621e37f 100644
--- a/packages/tool_util/requirements.txt
+++ b/packages/tool_util/requirements.txt
@@ -1,2 +1,2 @@
-galaxy-util
+galaxy-util>=20.1.0.dev0
 galaxy-containers