diff --git a/terrain-data/requirements.txt b/terrain-data/requirements.txt
index 0d25b2b..8a9c663 100644
--- a/terrain-data/requirements.txt
+++ b/terrain-data/requirements.txt
@@ -12,7 +12,7 @@ docutils==0.12
 jsonschema==2.5.1
 louis==2.6.5
 matplotlib==1.5.1
-numpy==1.11.0
+numpy==1.21.0
 packaging==16.7
 psutil==4.1.0
 pycups==1.9.73