diff --git a/Pipfile b/Pipfile
index ca916d6..d858ce3 100644
--- a/Pipfile
+++ b/Pipfile
@@ -9,7 +9,7 @@ pyinstaller = "~=4.3"
 pylint = "*"
 "flake8-bugbear" = "*"
 "flake8-comprehensions" = "*"
-sphinx = "*"
+sphinx = "==4.2.0"
 pytest = "~=6.2"
 sphinx-qt-documentation = "*"
 black = "==21.11b1"