diff --git a/requirements.txt b/requirements.txt
index 10c168b..0836710 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
-construct==2.10.66
+construct==2.10.67
 pytest>=6.2.0
-numpy>=1.20.*
+numpy==1.20.*
 arrow
 ruamel.yaml
 cloudpickle