diff --git a/requirements.bazel.txt b/requirements.bazel.txt
index 09f161ab711db..9285e29e81c95 100644
--- a/requirements.bazel.txt
+++ b/requirements.bazel.txt
@@ -12,5 +12,5 @@ requests>=2.14.2
 urllib3>=1.23
 chardet==3.0.4
 certifi==2017.4.17
-idna==2.7
+idna==3.7
 googleapis-common-protos==1.5.5