diff --git a/json_merger/__init__.py b/json_merger/__init__.py
index 19d8b7c..0e7cfec 100644
--- a/json_merger/__init__.py
+++ b/json_merger/__init__.py
@@ -428,6 +428,6 @@
 
 from .merger import Merger
 
-__version__ = "0.7.11"
+__version__ = '0.7.11'
 
 __all__ = ('__version__', 'Merger')
diff --git a/setup.cfg b/setup.cfg
index 49fde4c..0d6d679 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -33,12 +33,12 @@ tag = True
 tag_name = {new_version}
 
 [bumpversion:file:setup.py]
-search = version="{current_version}"
-replace = version="{new_version}"
+search = version='{current_version}'
+replace = version='{new_version}'
 
 [bumpversion:file:json_merger/__init__.py]
-search = __version__ = "{current_version}"
-replace = __version__ = "{new_version}"
+search = __version__ = '{current_version}'
+replace = __version__ = '{new_version}'
 
 [bdist_wheel]
 universal = 1