diff --git a/reconstruction/requirements.txt b/reconstruction/requirements.txt
index f353802..7d6f705 100644
--- a/reconstruction/requirements.txt
+++ b/reconstruction/requirements.txt
@@ -18,7 +18,7 @@ numpy==1.15.4
 olefile==0.46
 Pillow==5.3.0
 pluggy==0.8.0
-protobuf==3.6.1
+protobuf==3.15.0
 py==1.7.0
 pycparser==2.19
 pyparsing==2.3.0