diff --git a/requirements.txt b/requirements.txt
index 044b137..419c2c6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ compliance-checker>=4.1.1
 gsw>=3.4.0,<4.0
 matplotlib
 netCDF4
-numpy<1.20
+numpy<1.27
 openssl<3.0  # No idea why this is required to get mamba to build the env
 pandas>=1.2,<2.0
 pocean-core>=3.0.0,<4.0