diff --git a/noxfile.py b/noxfile.py
index 1f6cd29..8021922 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -5,16 +5,30 @@
 @session
 @parametrize(
     "pydantic",
-    ("2.0", "2.1", "2.2", "2.3", "2.4"),
+    (
+        (2, 0),
+        (2, 1),
+        (2, 2),
+        (2, 3),
+        (2, 4),
+        (2, 5),
+        (2, 6),
+        (2, 7),
+        (2, 8),
+        (2, 9),
+        (2, 10),
+    ),
 )
-@parametrize("graphene", ("2.1.8", "2.1.9", "3.0", "3.1", "3.2", "3.3"))
+@parametrize("graphene", ("2.1.8", "2.1.9", "3.0", "3.1", "3.2", "3.3", "3.4"))
 def tests(session, pydantic, graphene):
-    if sys.version_info > (3, 10) and pydantic in ("1.7", "1.8"):
+    if sys.version_info > (3, 10) and pydantic in ((1, 7), (1, 8)):
         return session.skip()
     if sys.version_info > (3, 10) and graphene <= "3":
-        # Graphene 2.x doesn't support Python 3.11
         return session.skip()
-    session.install(f"pydantic=={pydantic}")
+    if sys.version_info > (3, 11) and pydantic < (2, 9):
+        return session.skip()
+    pydantic_version_string = ".".join([str(n) for n in pydantic])
+    session.install(f"pydantic=={pydantic_version_string}")
     session.install(f"graphene=={graphene}")
     session.install("pytest", "pytest-cov", ".")
     session.run(