diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 7c09bab..511a71a 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python: ["3.8", "3.9", "3.10", "3.11"]
+        python: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
 
     steps:
       - uses: actions/checkout@v2
diff --git a/pyproject.toml b/pyproject.toml
index 10f14dd..1733f49 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,6 +22,10 @@ classifiers = [
     'License :: OSI Approved :: MIT License',
 ]
 license = {file = "LICENSE"}
+dependencies = [
+    "standard-aifc; python_version >= '3.13'",
+    "standard-sunau; python_version >= '3.13'",
+]
 
 [project.optional-dependencies]
 test = [