diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index cc9e043..435a325 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,17 +6,11 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.7, 3.8, 3.9, "3.10", "3.11"]
+        python-version: [3.9, "3.10", "3.11", "3.12", "3.13"]
     steps:
-    - uses: actions/checkout@v2
-    - uses: actions/setup-python@v1
+    - uses: actions/checkout@v4
+    - uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
-    - uses: actions/cache@v1
-      with:
-        path: ~/.cache/pip
-        key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements_dev.txt') }}
-        restore-keys: |
-          ${{ runner.os }}-pip-
     - run: pip install -e .[dev]
     - run: python -m unittest discover
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6989589..873a4a4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,7 +8,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## Changed
 
-Python support is now 3.7+ only
+Python support is now 3.9+ only
 
 ## [0.2.0] - 2017-11-??
 
diff --git a/setup.py b/setup.py
index 1dd7fe8..1584ea8 100644
--- a/setup.py
+++ b/setup.py
@@ -8,6 +8,6 @@
       license='BSD',
       packages=['json_merge_patch'],
       include_package_data=True,
-      python_requires=">=3.7",
+      python_requires=">=3.9",
       url='https://github.com/open-contracting/json-merge-patch'
 )