diff --git a/requirements.txt b/requirements.txt
index 2d4fe2b9d43437ea2395993c582f1b8d1768d8dd..abfcc62427a9f2b65b56320e69dc04c6d6be4059 100755
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,4 +14,4 @@ pyyaml
 h5py
 hjson
 enum34
-matid==0.5.2
+matid==0.5.1