diff --git a/tox-requirements.txt b/tox-requirements.txt
index adf8a247..03db9f38 100644
--- a/tox-requirements.txt
+++ b/tox-requirements.txt
@@ -1,5 +1,5 @@
 -r requirements.txt
-coverage==5.3.1
+coverage==5.5
 cryptography==3.3.1
 pytest==6.2.2
 WebTest==2.0.35