diff --git a/setup.cfg b/setup.cfg
index a0517b587..624f3cd6e 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -77,7 +77,7 @@ dev =
     types-setuptools
     # # Docs website
     mkdocs
-    mkdocstrings[python-legacy]>=0.19.0
+    mkdocstrings[python-legacy]==0.19.0
     mkdocs-material
     markdown-include
     pymdown-extensions