diff --git a/.github/workflows/sdk-py-test.yml b/.github/workflows/sdk-py-test.yml
index 03df38f72..5b3b11b2d 100644
--- a/.github/workflows/sdk-py-test.yml
+++ b/.github/workflows/sdk-py-test.yml
@@ -16,6 +16,12 @@ on:
 jobs:
   agentstack-sdk-py-test:
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python:
+          - "3.11"
+          - "3.13"
     steps:
       - uses: actions/checkout@v4
       - name: "Set up Lima"
@@ -29,4 +35,4 @@ jobs:
       - uses: ./.github/actions/setup
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      - run: mise run agentstack-sdk-py:e2e-test
+      - run: mise run agentstack-sdk-py:e2e-test --python=${{ matrix.python }}
diff --git a/apps/agentstack-sdk-py/tasks.toml b/apps/agentstack-sdk-py/tasks.toml
index ac01de3d5..8e0e2cf08 100644
--- a/apps/agentstack-sdk-py/tasks.toml
+++ b/apps/agentstack-sdk-py/tasks.toml
@@ -76,10 +76,13 @@ outputs = { auto = true }
 # test
 
 ["agentstack-sdk-py:e2e-test"]
+run = """
+#!/bin/bash
+uv run --python={{option(name="python", default="3.13")}} pytest
+"""
+
 depends = ["agentstack-sdk-py:setup"]
 dir = "{{config_root}}/apps/agentstack-sdk-py"
-run = "uv run pytest"
-
 # build
 
 ["agentstack-sdk-py:build"]