diff --git a/flask_smorest/__init__.py b/flask_smorest/__init__.py
index ca126417..55121b68 100644
--- a/flask_smorest/__init__.py
+++ b/flask_smorest/__init__.py
@@ -9,7 +9,7 @@
 from .globals import current_api  # noqa
 from .utils import PrefixedMappingProxy, normalize_config_prefix
 
-__version__ = "0.42.3"
+__version__ = "0.43.0"
 
 
 class Api(APISpecMixin, ErrorHandlerMixin):
diff --git a/setup.cfg b/setup.cfg
index 5786e161..1de862f6 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.42.3
+current_version = 0.43.0
 commit = True
 tag = True
 tag_name = {new_version}
diff --git a/setup.py b/setup.py
index 00682fe8..8bdf6cce 100644
--- a/setup.py
+++ b/setup.py
@@ -27,7 +27,7 @@
 
 setup(
     name="flask-smorest",
-    version="0.42.3",
+    version="0.43.0",
     description="Flask/Marshmallow-based REST API framework",
     long_description=long_description,
     url="https://github.com/marshmallow-code/flask-smorest",