diff --git a/DeleMa_Detect/requirements.txt b/DeleMa_Detect/requirements.txt
index 0ba240d..892aff3 100644
--- a/DeleMa_Detect/requirements.txt
+++ b/DeleMa_Detect/requirements.txt
@@ -23,7 +23,7 @@ numpy==1.18.5
 oauthlib==3.1.0
 opt-einsum==3.3.0
 Pillow==7.2.0
-protobuf==3.13.0
+protobuf==3.18.3
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 requests==2.24.0
@@ -66,7 +66,7 @@ numpy==1.18.5
 oauthlib==3.1.0
 opt-einsum==3.3.0
 Pillow==7.2.0
-protobuf==3.13.0
+protobuf==3.18.3
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 requests==2.24.0