diff --git a/src/py/reactpy/reactpy/__init__.py b/src/py/reactpy/reactpy/__init__.py
index 996a984b2..4fb4e8d09 100644
--- a/src/py/reactpy/reactpy/__init__.py
+++ b/src/py/reactpy/reactpy/__init__.py
@@ -21,7 +21,7 @@
 from reactpy.utils import Ref, html_to_vdom, vdom_to_html
 
 __author__ = "The Reactive Python Team"
-__version__ = "1.0.0"  # DO NOT MODIFY
+__version__ = "1.0.1"  # DO NOT MODIFY
 
 __all__ = [
     "backend",
diff --git a/tasks.py b/tasks.py
index e19476202..a36cd53ea 100644
--- a/tasks.py
+++ b/tasks.py
@@ -353,7 +353,7 @@ def parse_tag(tag: str) -> TagInfo:
         raise Exit(msg)
 
     version = match.group("version")
-    if not semver.Version.is_valid(version):
+    if not semver.VersionInfo.isvalid(version):
         raise Exit(f"Invalid version: {version} in tag {tag}")
 
     return TagInfo(tag=tag, name=match.group("name"), version=match.group("version"))