diff --git a/react/CozyDialogs/ConfirmDialog.jsx b/react/CozyDialogs/ConfirmDialog.jsx
index 40b7c891a9..c68c653b1c 100644
--- a/react/CozyDialogs/ConfirmDialog.jsx
+++ b/react/CozyDialogs/ConfirmDialog.jsx
@@ -65,6 +65,6 @@ const ConfirmDialog = ({
   )
 }
 
-ConfirmDialog.PropTypes = omit(dialogPropTypes, 'size')
+ConfirmDialog.propTypes = omit(dialogPropTypes, 'size')
 
 export default ConfirmDialog
diff --git a/react/CozyDialogs/IllustrationDialog.jsx b/react/CozyDialogs/IllustrationDialog.jsx
index 3a2c3183dd..e9325507bc 100644
--- a/react/CozyDialogs/IllustrationDialog.jsx
+++ b/react/CozyDialogs/IllustrationDialog.jsx
@@ -65,6 +65,6 @@ const IllustrationDialog = ({
   )
 }
 
-IllustrationDialog.PropTypes = dialogPropTypes
+IllustrationDialog.propTypes = dialogPropTypes
 
 export default IllustrationDialog