diff --git a/requirements.txt b/requirements.txt
index 4875572a..e605ad5c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -11,7 +11,7 @@ jupyter==1.0.0
 matplotlib==3.6.2
 mpl-interactions==0.22.0
 neo==0.13.0
-numpy
+numpy==1.23.5
 nwbwidgets
 ophys-nway-matching @ git+https://github.com/AllenInstitute/ophys_nway_matching@545504ab55922717ab623f8ede2c521a60aa1458
 pandas==1.5.2