diff --git a/REQUIRE b/REQUIRE
index d124b931..7c084129 100644
--- a/REQUIRE
+++ b/REQUIRE
@@ -3,5 +3,5 @@ DataFlow 0.2.1
 Juno
 MacroTools 0.3.3
 NNlib
-ForwardDiff
+ForwardDiff 0.5.0
 Requires