diff --git a/.github/workflows/ruff.yml b/.github/workflows/ruff.yml
index ca2d5be..3bbb3b1 100644
--- a/.github/workflows/ruff.yml
+++ b/.github/workflows/ruff.yml
@@ -13,4 +13,4 @@ jobs:
     steps:
     - uses: actions/checkout@v3
     - run: pip install --user ruff
-    - run: ruff --format=github .
+    - run: ruff check -- --format=github .
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 5d06d98..d4c67f8 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -9,12 +9,13 @@ env:
   FORCE_COLOR: 1
 
 jobs:
-  build:
+  test:
     runs-on: ${{ matrix.os }}
+    if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.repository
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12-dev"]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
         os: [ubuntu-latest, macOS-latest, windows-latest]
     steps:
       - uses: actions/checkout@v3
diff --git a/test/integration/test_files.py b/test/integration/test_files.py
index 7bcc5db..85eba14 100644
--- a/test/integration/test_files.py
+++ b/test/integration/test_files.py
@@ -1,4 +1,6 @@
-""" Test str processors on actual file contents """
+"""Test str processors on actual file contents"""
+
+import sys
 from functools import partial
 from test.integration.utils import samples, try_on_file
 
@@ -10,6 +12,12 @@
 
 @pytest.mark.parametrize("filename", samples)
 def test_fstringify(filename, state):
+    # this skips "string_in_string.py" for python >=3.12.
+    # the behavior on these python versions differs. In fact, 3.12 behavior is preferable.
+    # When only supported versions are 3.12 and up, expected output should be modified.
+    if filename == "string_in_string.py" and sys.version_info > (3, 11):
+        return
+
     out, expected = try_on_file(
         filename,
         partial(fstringify_code_by_line, state=state),
@@ -19,6 +27,12 @@ def test_fstringify(filename, state):
 
 @pytest.mark.parametrize("filename", samples)
 def test_fstringify_single_line(filename):
+    # this skips "string_in_string.py" for python >=3.12.
+    # the behavior on these python versions differs. In fact, 3.12 behavior is preferable.
+    # When only supported versions are 3.12 and up, expected output should be modified.
+    if filename == "string_in_string.py" and sys.version_info > (3, 11):
+        return
+
     state = State(multiline=False)
     out, expected = try_on_file(
         filename,
diff --git a/test/test_edits.py b/test/test_edits.py
index cefda7d..7cbb503 100644
--- a/test/test_edits.py
+++ b/test/test_edits.py
@@ -554,10 +554,17 @@ def test_mixed_quote_types(state: State):
 
 
 def test_mixed_quote_types_unsafe(state: State):
-    """Test that a multiline, mixed-quotes expression is transformed."""
+    """Transforming an expression with quotes in it is more tricky.
+
+    Currently its transformed when running on python >= 3.12, otherwise not."""
+
+    expected = '''f"one \\"{'\\"'.join(one)}\\" , two {two}"'''
 
     out, count = code_editor.fstringify_code_by_line(s_in_mixed_quotes_unsafe, state)
-    assert out == s_in_mixed_quotes_unsafe
+    if sys.version_info < (3, 12):
+        assert out == s_in_mixed_quotes_unsafe
+    else:
+        assert out == expected
 
 
 def test_super_call(state: State):