diff --git a/requirements.txt b/requirements.txt
index 4d55e7b..5c43e39 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,7 +7,7 @@ llvmlite==0.31.0
 numba==0.48.0
 numpy==1.19.0
 Pillow==7.2.0
-protobuf==3.12.2
+protobuf==3.15.0
 pycparser==2.20
 resampy==0.2.2
 scikit-learn==0.23.1