diff --git a/.github/workflows/sanity.yml b/.github/workflows/sanity.yml
index 776e72a..9a31f34 100644
--- a/.github/workflows/sanity.yml
+++ b/.github/workflows/sanity.yml
@@ -8,11 +8,19 @@ on:
 
 jobs:
   sanity:
+    strategy:
+      matrix:
+        python: ["3.10", "3.11", "3.12"]
+
     runs-on: ubuntu-latest
 
     steps:
       - uses: actions/checkout@v4
 
+      - uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python }}
+
       - name: Update pip
         run: python3 -m pip install --upgrade pip
 
@@ -25,6 +33,5 @@ jobs:
       - name: Check help message
         run: python3 -m chatdbg --help
 
-      - name: Check calling executables directly
-        run: |
-          chatdbg --help
+      - name: Check calling executable directly
+        run: chatdbg --help
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index a9e5033..6311185 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -2,55 +2,49 @@ name: tests
 
 on:
   push:
-    branches: [ main ]
-
+    branches: [main]
   pull_request:
-    branches: [ main ]
-
-  workflow_dispatch:
-
+    branches: [main]
 
 jobs:
   run-tests:
-    runs-on: ${{ matrix.os }}
-    timeout-minutes: 15
     strategy:
       matrix:
-        os: [ ubuntu-latest, macos-latest ]
-        python: [ '3.9', '3.10', '3.11', '3.12' ]
+        os: [ubuntu-latest, macos-latest]
+        python: ["3.10", "3.11", "3.12"]
+
+    runs-on: ${{ matrix.os }}
 
     steps:
-    - uses: actions/checkout@v4
-
-    - uses: actions/setup-python@v5
-      with:
-        python-version: ${{ matrix.python }}
-
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: ${{ matrix.python }}
-
-    - name: Work around arm64 support on MacOS
-      # https://github.com/actions/virtual-environments/issues/2557
-      if: matrix.os == 'macos-latest'
-      run: sudo rm -Rf /Library/Developer/CommandLineTools/SDKs/*
-
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-
-    - name: Build
-      run: pip -v install -e .
-
-    - name: install test dependencies
-      run: |
-        python3 -m pip install pytest pytest-asyncio pytest-forked hypothesis pytest-mock
-        python3 -m pip install -r test/requirements.txt
-        python3 -m pip install .
-
-    - name: run tests
-      env:
-        OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
-      run: |
-        python3 -m pytest --forked
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python }}
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python }}
+
+      - name: Work around arm64 support on MacOS
+        # https://github.com/actions/virtual-environments/issues/2557
+        if: matrix.os == 'macos-latest'
+        run: sudo rm -Rf /Library/Developer/CommandLineTools/SDKs/*
+
+      - name: Install dependencies
+        run: python -m pip install --upgrade pip
+
+      - name: Build
+        run: pip -v install -e .
+
+      - name: install test dependencies
+        run: |
+          python3 -m pip install pytest pytest-asyncio pytest-forked hypothesis pytest-mock
+          python3 -m pip install -r test/requirements.txt
+          python3 -m pip install .
+
+      - name: run tests
+        env:
+          OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
+        run: python3 -m pytest --forked
diff --git a/pyproject.toml b/pyproject.toml
index dc0b9b8..968f8c0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,7 +26,7 @@ dependencies = [
 ]
 description = "AI-assisted debugging. Uses AI to answer 'why'."
 readme = "README.md"
-requires-python = ">=3.7"
+requires-python = ">=3.10"
 classifiers = [
   "Programming Language :: Python :: 3",
   "License :: OSI Approved :: Apache Software License",