diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 23736fc..ac7cc83 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -28,8 +28,8 @@ jobs:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
         arch: [x86_64, aarch64]
-        cibw_build: ["cp3{9,10,11,12,13}-*"]
-        p_ver: ["3.9-3.13"]
+        cibw_build: ["cp3{10,11,12,13}-*"]
+        p_ver: ["3.10-3.13"]
         exclude:
           - os: windows-latest
             arch: aarch64
diff --git a/RELEASE_NOTES.rst b/RELEASE_NOTES.rst
index 3d0db54..f919b11 100644
--- a/RELEASE_NOTES.rst
+++ b/RELEASE_NOTES.rst
@@ -5,7 +5,7 @@ Release notes for NumExpr 2.10 series
 Changes from 2.10.2 to 2.10.3
 -----------------------------
 
-* **Under development.**
+* Python 3.10 is now the minimum supported version.
 
 
 Changes from 2.10.1 to 2.10.2
diff --git a/pyproject.toml b/pyproject.toml
index 9f2f025..e95cd82 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -26,12 +26,12 @@ classifiers = [
     "Operating System :: Microsoft :: Windows",
     "Operating System :: Unix",
     "Programming Language :: Python :: 3",
-    "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",
 ]
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 # Follow guidelines from https://scientific-python.org/specs/spec-0000/
 dependencies = [
     "numpy>=1.23.0",