diff --git a/dev-requirements.txt b/dev-requirements.txt
index 3e31cc0e3e..ec1e705f66 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -7,7 +7,7 @@ PySocks==1.7.1
 win-inet-pton==1.1.0
 pytest==4.6.9
 pytest-timeout==1.3.4
-pytest-freezegun==0.3.0.post1
+pytest-freezegun==0.4.2
 flaky==3.6.1
 trustme==0.5.3
 cryptography==2.8