diff --git a/CHANGES.md b/CHANGES.md
index 26364bd8..d5223c66 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,8 +1,8 @@
 CHANGES
 ========
 
-Unreleased
-----------
+3.3.1
+-----
 
 ### Bug fixes
 
diff --git a/pyproject.toml b/pyproject.toml
index 66c7773d..78e17219 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "python-snap7"
-version = "3.3.0"
+version = "3.3.1"
 description = "Pure Python S7 communication library for Siemens PLCs"
 readme = "README.rst"
 authors = [
diff --git a/uv.lock b/uv.lock
index a14f8823..80a4806e 100644
--- a/uv.lock
+++ b/uv.lock
@@ -1113,7 +1113,7 @@ wheels = [
 
 [[package]]
 name = "python-snap7"
-version = "3.3.0"
+version = "3.3.1"
 source = { editable = "." }
 
 [package.optional-dependencies]