diff --git a/ci/requirements.txt b/ci/requirements.txt
index 472244b76..ac33e16d2 100644
--- a/ci/requirements.txt
+++ b/ci/requirements.txt
@@ -1,5 +1,5 @@
 beautifulsoup4>=4.6
 numpy==1.19.5
 pandas==1.1.5
-protobuf==3.14.0
+protobuf==3.15.5
 requests==2.25.1