diff --git a/requirements.in b/requirements.in
index a85caacf..416ac31e 100644
--- a/requirements.in
+++ b/requirements.in
@@ -204,7 +204,7 @@ mypy==1.20.2
     # via mozilla-jetstream
 mypy-extensions==1.1.0
     # via mypy
-narwhals==2.20.0
+narwhals==2.22.0
     # via
     #   formulaic
     #   marginaleffects
diff --git a/requirements.txt b/requirements.txt
index 9eb3a49e..cf49ef02 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1413,9 +1413,9 @@ mypy-extensions==1.1.0 \
     # via
     #   -r requirements.in
     #   mypy
-narwhals==2.20.0 \
-    --hash=sha256:16e750ea5507d4ba6e8d03455b5f93a535e0405976561baea235bca5dc9f475d \
-    --hash=sha256:c10994975fa7dc5a68c2cffcddbd5908fc8ebb2d463c5bab085309c0ee1f551e
+narwhals==2.22.0 \
+    --hash=sha256:1421797ede01789cc1537619dbc3f36f840737240f748fdb24a60a0225fc80be \
+    --hash=sha256:6486282bb7e4b4ab55963efbd8be1451b764cc4874b74d1fd625eba9dc60b86f
     # via
     #   -r requirements.in
     #   formulaic