diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 27eb15609..57b9bd64c 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ["3.9", "3.10", "3.11", "3.12"]
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
     steps:
       - uses: actions/checkout@v3
       - name: Install dependencies
@@ -38,7 +38,7 @@ jobs:
     runs-on: macos-latest
     strategy:
       matrix:
-        python-version: ["3.9", "3.12"]
+        python-version: ["3.9", "3.13"]
     steps:
       - uses: actions/checkout@v3
       - name: Set up Python
@@ -56,7 +56,7 @@ jobs:
     runs-on: macos-13
     strategy:
       matrix:
-        python-version: ["3.9", "3.12"]
+        python-version: ["3.9", "3.13"]
     steps:
       - uses: actions/checkout@v3
       - name: Set up Python
@@ -83,7 +83,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v4
         with:
-          python-version: "3.12"
+          python-version: "3.13"
       - name: Install tox
         run: |
           python -m pip install --upgrade pip
diff --git a/.github/workflows/docs-dev.yml b/.github/workflows/docs-dev.yml
index 410806795..ef831d129 100644
--- a/.github/workflows/docs-dev.yml
+++ b/.github/workflows/docs-dev.yml
@@ -15,7 +15,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
-          python-version: "3.12"
+          python-version: "3.13"
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
diff --git a/.github/workflows/docs-release.yml b/.github/workflows/docs-release.yml
index 7374ff287..cecc8a428 100644
--- a/.github/workflows/docs-release.yml
+++ b/.github/workflows/docs-release.yml
@@ -15,7 +15,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
-          python-version: "3.12"
+          python-version: "3.13"
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
diff --git a/.github/workflows/docs-stable.yml b/.github/workflows/docs-stable.yml
index 8ad79dc1d..a5ff3344f 100644
--- a/.github/workflows/docs-stable.yml
+++ b/.github/workflows/docs-stable.yml
@@ -15,7 +15,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
-          python-version: "3.12"
+          python-version: "3.13"
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
diff --git a/pyproject.toml b/pyproject.toml
index 47fa2fff2..c78e60552 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -17,6 +17,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
     "Programming Language :: Rust",
     "Topic :: Scientific/Engineering :: Chemistry",
     "Topic :: Scientific/Engineering :: Physics",
diff --git a/tests/python/operators/fermion_operator_test.py b/tests/python/operators/fermion_operator_test.py
index 83808ef61..015fc7a82 100644
--- a/tests/python/operators/fermion_operator_test.py
+++ b/tests/python/operators/fermion_operator_test.py
@@ -596,8 +596,8 @@ def test_str_equivalent():
             (ffsim.cre_b(2), ffsim.des_b(1)): 1 - 0.5j,
         }
     )
-    exec("from ffsim import cre_a, cre_b, des_a, des_b")
-    assert eval(str(op)) == op
+    exec("from ffsim import cre_a, cre_b, des_a, des_b", globals())
+    assert eval(str(op), globals()) == op
 
 
 def test_copy():