1 files changed, 2 insertions, 2 deletions

diff --git a/tox.ini b/tox.ini
index e414f82..61667f5 100644
--- a/tox.ini
+++ b/tox.ini
@@ -50,8 +50,8 @@ commands =
     coverage run --module pytest ice_validator/tests --self-test -rxXs
     coverage xml
 deps = -rrequirements.txt
-    flake8
-    coverage
+    flake8==3.4.1
+    coverage==4.5.1
 
 [testenv:style]
 commands = flake8 ice_validator