diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 9e1b27453..4e20eebed 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -66,14 +66,9 @@ jobs:
       matrix:
         os: [ ubuntu-latest, windows-latest ]
         python-version: [ "3.12", "3.9" ]
-        pydantic: [ "pydantic1", "pydantic2" ]
         exclude:
           - os: windows-latest
             python-version: 3.9
-          - python-version: 3.9
-            pydantic: "pydantic1"
-          - os: windows-latest
-            pydantic: "pydantic1"
     steps:
       - uses: actions/checkout@v4
       - name: "Install uv"
diff --git a/tox.ini b/tox.ini
index 5fb8f8bcf..e1959b2c6 100644
--- a/tox.ini
+++ b/tox.ini
@@ -19,8 +19,7 @@ envlist =
     docstr-coverage
     docs
     # the actual tests
-    py-pydantic1
-    py-pydantic2
+    py
     doctests
     # always keep coverage-report last
     #coverage-report
@@ -30,9 +29,6 @@ commands =
     coverage run -p -m pytest --durations=20 {posargs:tests}
     coverage combine
     coverage xml
-deps =
-    pydantic1: pydantic<2.0
-    pydantic2: pydantic>=2.0
 passenv =
     HOME
 extras =