diff --git a/.github/workflows/lint-test-docs.yml b/.github/workflows/lint-test-docs.yml
index 441db34..b4b8944 100644
--- a/.github/workflows/lint-test-docs.yml
+++ b/.github/workflows/lint-test-docs.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "pypy3.8", "pypy3.9", "pypy3.10"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "pypy3.8", "pypy3.9", "pypy3.10", "pypy3.11"]
 
     steps:
       - uses: actions/checkout@v4
diff --git a/pyproject.toml b/pyproject.toml
index 9f53d9c..3bf5b18 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "polyline"
-version = "2.0.2"
+version = "2.0.3"
 description = "A Python implementation of Google's Encoded Polyline Algorithm Format."
 license = {file = "LICENSE"}
 authors = [
@@ -24,6 +24,7 @@ dev = [
     "pylint~=3.0.3",
     "sphinx~=5.3.0",
     "sphinx-rtd-theme~=1.2.0",
+    "standard-imghdr;python_version > '3.12'",
     "tomli;python_version < '3.11'",
 ]
 publish = [