diff --git a/data/preprocess/requirements-preprocess.txt b/data/preprocess/requirements-preprocess.txt
index ee39203..2a9ac14 100644
--- a/data/preprocess/requirements-preprocess.txt
+++ b/data/preprocess/requirements-preprocess.txt
@@ -8,7 +8,7 @@ Penman==1.2.0
 plac==1.1.3
 pluggy==0.13.1
 preshed==3.0.5
-protobuf==3.17.3
+protobuf==3.18.3
 py==1.10.0
 pyarrow==3.0.0
 pyparsing==2.4.7