diff --git a/.github/workflows/run_tests.yaml b/.github/workflows/run_tests.yaml
index 11a6151d7c..c7b21bce81 100644
--- a/.github/workflows/run_tests.yaml
+++ b/.github/workflows/run_tests.yaml
@@ -22,7 +22,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v2
       with:
-        python-version: 3.9
+        python-version: 3.12
 
     - name: Install dependencies
       run: |
diff --git a/.github/workflows/test_eval.yaml b/.github/workflows/test_eval.yaml
index f7a904a89c..3a64736b4d 100644
--- a/.github/workflows/test_eval.yaml
+++ b/.github/workflows/test_eval.yaml
@@ -27,7 +27,7 @@ jobs:
     - name: Set up Python
       uses: actions/setup-python@v2
       with:
-        python-version: 3.9
+        python-version: 3.12
 
     - name: Install dependencies
       run: |
diff --git a/README.md b/README.md
index b6d57c76ee..7da614e6d1 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@ If you are building with LLMs, creating high quality evals is one of the most im
 
 To run evals, you will need to set up and specify your [OpenAI API key](https://platform.openai.com/account/api-keys). After you obtain an API key, specify it using the [`OPENAI_API_KEY` environment variable](https://platform.openai.com/docs/quickstart/step-2-setup-your-api-key). Please be aware of the [costs](https://openai.com/pricing) associated with using the API when running evals. You can also run and create evals using [Weights & Biases](https://wandb.ai/wandb_fc/openai-evals/reports/OpenAI-Evals-Demo-Using-W-B-Prompts-to-Run-Evaluations--Vmlldzo0MTI4ODA3).
 
-**Minimum Required Version: Python 3.9**
+**Minimum Required Version: Python 3.12**
 
 ### Downloading evals
 
diff --git a/mypy.ini b/mypy.ini
index 3f75fefc0b..c09c037e3c 100644
--- a/mypy.ini
+++ b/mypy.ini
@@ -1,5 +1,5 @@
 [mypy]
-python_version=3.9
+python_version=3.12
 
 mypy_path=$MYPY_CONFIG_FILE_DIR/typings
 
diff --git a/pyproject.toml b/pyproject.toml
index 15149c3b2e..bbf20719e3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [project]
 name = "evals"
 version = "3.0.1.post1"
-requires-python = ">=3.9"
+requires-python = ">=3.12"
 readme = "README.md"
 dependencies = [
     "aiolimiter",