diff --git a/models/examples/gfdl_cm3/requirements.txt b/models/examples/gfdl_cm3/requirements.txt
index 8c81060..2364158 100644
--- a/models/examples/gfdl_cm3/requirements.txt
+++ b/models/examples/gfdl_cm3/requirements.txt
@@ -1 +1 @@
-numpy==1.18.1
+numpy==1.22.0