diff --git a/tox.ini b/tox.ini
index a68e61cdb607d263f4431ff41d254e7d3f841fad..139a716cd343c054950aef7b792c03da184d842f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -66,7 +66,7 @@ changedir = {toxinidir}/robot-systest
 deps =  {[testenv]deps}
         -r{toxinidir}/requirements-dev.txt
         robotframework-lint
-        robotframework-robocop
+        robotframework-robocop==4.2.2
 commands =
         rflint --ignore LineTooLong --ignore TooFewTestSteps --ignore TooManyTestCases \
                --ignore TooManyTestSteps --ignore TooFewKeywordSteps \