diff --git a/aider/versioncheck.py b/aider/versioncheck.py
index c16a0d4b6..f297c7695 100644
--- a/aider/versioncheck.py
+++ b/aider/versioncheck.py
@@ -13,6 +13,12 @@ def check_version(print_cmd):
         latest_version = data["info"]["version"]
         current_version = aider.__version__
 
+        from aider.dump import dump
+        dump(current_version)
+        dump(packaging.version.parse(latest_version))
+        dump(packaging.version.parse(
+            current_version
+        ))
         if packaging.version.parse(latest_version) <= packaging.version.parse(
             current_version
         ):
diff --git a/scripts/versionbump.py b/scripts/versionbump.py
index 86549077e..027e15658 100644
--- a/scripts/versionbump.py
+++ b/scripts/versionbump.py
@@ -19,6 +19,7 @@ def main():
         raise ValueError(f"Invalid version format, must be x.y.z: {new_version_str}")
 
     new_version = version.parse(new_version_str)
+    incremented_version = version.Version(f"{new_version.major}.{new_version.minor}.{new_version.micro + 1}")
 
     with open("aider/__init__.py", "r") as f:
         content = f.read()
@@ -51,7 +52,7 @@ def main():
             subprocess.run(cmd, check=True)
 
     updated_dev_content = re.sub(
-        r'__version__ = ".+?"', f'__version__ = "{new_version}-dev"', content
+        r'__version__ = ".+?"', f'__version__ = "{incremented_version}-dev"', content
     )
 
     print()