diff --git a/mikeio1d/__init__.py b/mikeio1d/__init__.py
index 9e0aeeeb..b652f59f 100644
--- a/mikeio1d/__init__.py
+++ b/mikeio1d/__init__.py
@@ -24,7 +24,7 @@
 # Dev branch marker is: 'X.Y.dev' or 'X.Y.devN' where N is an integer.
 # 'X.Y.dev0' is the canonical version of 'X.Y.dev'
 #
-__version__ = "0.10.0"
+__version__ = "1.0.0"
 
 if "64" not in platform.architecture()[0]:
     raise Exception("This library has not been tested for a 32 bit system.")
diff --git a/pyproject.toml b/pyproject.toml
index 409dc711..168b65d3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,7 +19,7 @@ exclude = ["notebooks", "tests", "images"]
 
 [project]
 name = "mikeio1d"
-version = "0.10.0"
+version = "1.0.0"
 description = "A package that uses the DHI MIKE1D .NET libraries to read res1d and xns11 files."
 readme = "README.md"
 requires-python = ">=3.9"