diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index c2dd26f7..7d2a4e9c 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -8,7 +8,6 @@ on:
   workflow_dispatch:
 
 env:
-  JAX_PLATFORM_NAME: cpu
   QT_QPA_PLATFORM: offscreen
   DISPLAY: :99
 
@@ -52,7 +51,7 @@ jobs:
     - name: Run Pytest
       if: matrix.os != 'ubuntu-latest' || matrix.pyversion != '3.12'
       run: |
-        pdm run pytest -Werror -n auto
+        pdm run pytest -n auto
 
     - name: Run pytest and coverage
       if: matrix.os == 'ubuntu-latest' && matrix.pyversion == '3.12'
diff --git a/pyproject.toml b/pyproject.toml
index 4222084d..ce69f968 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -110,6 +110,14 @@ addopts = [
   '--benchmark-skip',
 ]
 doctest_optionflags = ["NORMALIZE_WHITESPACE"]
+env = [
+  "JAX_DEBUG_NANS=True",
+  "JAX_PLATFORM_NAME=cpu"
+]
+filterwarnings = [
+  "error",
+  'ignore:datetime\.datetime\.utcfromtimestamp is deprecated:DeprecationWarning',  # Python 3.12
+]
 
 [tool.ruff]
 extend-ignore = [