diff --git a/requirements.txt b/requirements.txt
index 9519e82fa..11620f2d6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -165,7 +165,7 @@ html5lib==1.1
     # via
     #   mitol-django-mail
     #   wagtail
-httplib2==0.18.0
+httplib2==0.19.0
     # via
     #   google-api-python-client
     #   google-auth-httplib2
@@ -258,6 +258,8 @@ pynacl==1.3.0
     # via -r requirements.in
 pyopenssl==17.5.0
     # via django-server-status
+pyparsing==2.4.7
+    # via httplib2
 python-dateutil==2.5.3
     # via
     #   botocore