diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 67075ef..17ce23d 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -20,8 +20,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.9', '3.10', '3.11', '3.12']
-        os: [ubuntu-latest, macos-13]
+        python-version: ['3.10', '3.11', '3.12', '3.13']
+        os: [ubuntu-latest, macos-14]
 
     steps:
     - uses: actions/checkout@v6
diff --git a/pyproject.toml b/pyproject.toml
index 82f7690..aee63d0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,7 +33,7 @@ classifiers = [
     "Topic :: Scientific/Engineering :: Physics",
     "Topic :: Software Development",
 ]
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 dependencies=[
     "PyWavelets",
     "colorlog",