diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 238edb90..38788407 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -34,6 +34,7 @@ jobs:
         - linux: py311-xdist
         - linux: py312-cov-xdist
           coverage: codecov
+        - linux: py313-xdist
         - macos: py311-xdist
   test_downstream:
     uses: OpenAstronomy/github-actions-workflows/.github/workflows/tox.yml@v1
diff --git a/pyproject.toml b/pyproject.toml
index 1b2c79e9..373b09e0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,7 +2,7 @@
 name = "stcal"
 description = "STScI tools and algorithms used in calibration pipelines"
 readme = "README.md"
-requires-python = ">=3.10,<3.13"
+requires-python = ">=3.10"
 authors = [
     { name = "STScI", email = "help@stsci.edu" },
 ]