diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 6920b85e..993cc8f7 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -42,7 +42,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: ["3.9", "3.13"]
+        python-version: ["3.10", "3.13"]
     steps:
       - uses: actions/checkout@v4
       - uses: jupyterlab/maintainer-tools/.github/actions/base-setup@v1
diff --git a/pyproject.toml b/pyproject.toml
index f20dcf71..12431091 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,19 +14,18 @@ classifiers = [
     "Intended Audience :: Science/Research",
     "License :: OSI Approved :: BSD License",
     "Programming Language :: Python",
-    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
 ]
 urls = {Homepage = "https://jupyter.org"}
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 dynamic = ["version"]
 dependencies = [
     "click<8.2.0",
     "ghapi<=1.0.4",
-    "github-activity~=0.2",
+    "github-activity>=1.1.1,<2",
     "importlib_resources",
     "jsonschema>=3.0.1",
     "mdformat",