diff --git a/Pipfile b/Pipfile
index 40cb289..4b31cb2 100644
--- a/Pipfile
+++ b/Pipfile
@@ -41,7 +41,7 @@ multidict = "==5.1.0"
 mypy-extensions = "==0.4.3"
 nltk = "==3.5"
 pipenv = "==2020.11.15"
-proto-plus = "==1.13.0"
+proto-plus = "==1.15.0"
 protobuf = "==3.14.0"
 pyasn1 = "==0.4.8"
 pyasn1-modules = "==0.2.8"