diff --git a/src/cephadm/tox.ini b/src/cephadm/tox.ini
index 80449320ee9c3c..7c07d1ca8c6369 100644
--- a/src/cephadm/tox.ini
+++ b/src/cephadm/tox.ini
@@ -59,7 +59,7 @@ commands =
 basepython = python3
 allowlist_externals = bash
 deps =
-    flake8
+    flake8 == 5.0.4
     flake8-quotes
 commands =
     flake8 --config=tox.ini {posargs:cephadm.py}