diff --git a/sdk/python/requirements-dev.txt b/sdk/python/requirements-dev.txt
index 0822db76f94..7e4a8c25c6b 100644
--- a/sdk/python/requirements-dev.txt
+++ b/sdk/python/requirements-dev.txt
@@ -10,7 +10,7 @@ googleapis-common-protos==1.52.0
 grpcio==1.31.0
 grpcio-testing==1.31.0
 grpcio-tools==1.31.0
-numpy
+numpy<1.20.0
 mock==2.0.0
 pandas~=1.0.0
 protobuf==3.*
diff --git a/sdk/python/setup.py b/sdk/python/setup.py
index cebd5155819..47f0030b428 100644
--- a/sdk/python/setup.py
+++ b/sdk/python/setup.py
@@ -42,7 +42,7 @@
     "toml==0.10.*",
     "tqdm==4.*",
     "pyarrow==2.0.0",
-    "numpy",
+    "numpy<1.20.0",
     "google",
     "kubernetes==12.0.*",
 ]