diff --git a/noxfile.py b/noxfile.py
index e41ee6c..bedf79c 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -72,7 +72,12 @@
 CURRENT_DIRECTORY = pathlib.Path(__file__).parent.absolute()
 
 nox.options.sessions = [
-    "unit",
+    "unit-3.9",
+    "unit-3.10",
+    "unit-3.11",
+    "unit-3.12",
+    "unit-3.13",
+    "unit-3.14",
     "system",
     "cover",
     "lint",
diff --git a/owlbot.py b/owlbot.py
index f183bb8..d534f43 100644
--- a/owlbot.py
+++ b/owlbot.py
@@ -39,6 +39,21 @@
     'session.python in ("3.11", "3.12", "3.13", "3.14")'
 )
 
+s.replace(
+    "noxfile.py",
+    """nox\.options\.sessions = \[
+    "unit",
+	""",
+    """nox.options.sessions = [
+    "unit-3.9",
+    "unit-3.10",
+    "unit-3.11",
+    "unit-3.12",
+    "unit-3.13",
+    "unit-3.14",
+	""",
+)
+
 s.replace(
     ".kokoro/presubmit/presubmit.cfg",
     """# Format: //devtools/kokoro/config/proto/build.proto""",