diff --git a/tools/requirements.txt b/tools/requirements.txt
index c48971c5..eae8f8a9 100644
--- a/tools/requirements.txt
+++ b/tools/requirements.txt
@@ -6,7 +6,7 @@ bump2version==0.5.11
 contextlib2==0.6.0.post1 ; python_version < '3'
 coverage==5.0.2
 entrypoints==0.3
-enum34==1.1.6
+enum34==1.1.10
 flake8==3.7.9
 funcsigs==1.0.2 ; python_version < '3.3'
 functools32==3.2.3.post2 ; python_version < '3'