diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 16550808..28bf263f 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -38,7 +38,10 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        python-version: ["3.8", "3.12"]
+        python-version:
+          - "3.8"
+          - "3.12"
+          - "3.13-dev"
         include:
           - os: windows-latest
             python-version: "3.11"
diff --git a/pyproject.toml b/pyproject.toml
index 8a0ea4f4..3701c4f4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -133,6 +133,8 @@ filterwarnings= [
   # from python-dateutil
   "ignore:datetime.datetime.utcfromtimestamp:DeprecationWarning",
   "ignore:datetime.datetime.utcnow:DeprecationWarning",
+  # from ipykernel 6 (fixed in 7)
+  "ignore:Parsing dates:DeprecationWarning:ipykernel.jsonutil",
 ]
 
 [tool.coverage.report]