diff --git a/datagen/requirements.txt b/datagen/requirements.txt
index 27697c1..826d1ee 100644
--- a/datagen/requirements.txt
+++ b/datagen/requirements.txt
@@ -12,7 +12,7 @@ google-resumable-media==0.3.2
 googleapis-common-protos==1.6.0
 grpc-google-iam-v1==0.11.4
 grpcio==1.21.1
-idna==2.8
+idna==3.7
 protobuf==3.8.0
 pyasn1==0.4.5
 pyasn1-modules==0.2.5