diff --git a/docker/python-base/environment.yml b/docker/python-base/environment.yml
index 26348b4..60a1df2 100644
--- a/docker/python-base/environment.yml
+++ b/docker/python-base/environment.yml
@@ -12,7 +12,7 @@ dependencies:
   - mkl=2022.0
   - mkl-include=2022.0
   - ninja
-  - numpy=1.22.1
+  - numpy=1.21.6
   - python=3.8
   - pyyaml=5.4.1
   - requests