diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 7b20951..ab062d3 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -5,8 +5,8 @@ tag = False
 message = Prepare next version {new_version} (unreleased)
 
 [bumpversion:file:setup.py]
-search = version='{current_version}'
-replace = version='{new_version}'
+search = version="{current_version}"
+replace = version="{new_version}"
 
 [bumpversion:file:deprecated/__init__.py]
 search = __version__ = "{current_version}"