diff --git a/requirements-dev.txt b/requirements-dev.txt
index c3b95d62..16a72b10 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -46,7 +46,7 @@ google-cloud-storage==1.19.1
 google-resumable-media==0.4.1
 googleapis-common-protos==1.6.0
 httpie==1.0.3
-httplib2==0.13.1
+httplib2==0.19.0
 idna==2.8
 inflection==0.3.1
 iso8601==0.1.12
diff --git a/requirements.txt b/requirements.txt
index 1cba1f39..180b91b3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -34,7 +34,7 @@ google-cloud-core==1.0.3
 google-cloud-storage==1.19.1
 google-resumable-media==0.4.1
 googleapis-common-protos==1.6.0
-httplib2==0.13.1
+httplib2==0.19.0
 idna==2.8
 inflection==0.3.1
 iso8601==0.1.12