diff --git a/requirements-min.txt b/requirements-min.txt
index ccfeae15..b3d67900 100644
--- a/requirements-min.txt
+++ b/requirements-min.txt
@@ -1,7 +1,6 @@
 hdmf==3.14.2
-zarr==2.12.0
+zarr==2.18.0
 numcodecs==0.9.1
 pynwb==2.5.0
 setuptools
 threadpoolctl==3.1.0
-numpy==1.19.3