diff --git a/python27.yaml b/python27.yaml
index d3f9538..ede5e43 100644
--- a/python27.yaml
+++ b/python27.yaml
@@ -191,7 +191,7 @@ data:
         ref: fe428e3002127fbbc3d12619403e09f7e4db43a0
       python-backports:
         rationale: Namespace for backported Python features
-        ref: b2cecee7982583fcb9c15f412a77587a13354d82
+        ref: cf94c30f7edfe5aa282b5d0e5c11ffed6f3c1a78
       python-backports-ssl_match_hostname:
         rationale: The ssl.match_hostname() function from Python 3. Dependency of
           urllib3/requests.
@@ -276,7 +276,7 @@ data:
       python-urllib3:
         rationale: Python HTTP library with thread-safe connection pooling and file
           post. Dependency of requests.
-        ref: f594b0aa04af42846c0e7f98c7c9a05cd5ebed27
+        ref: adf06868a1e8b92e60549464f7f5a4179451bf96
       python-virtualenv:
         rationale: Tool to create isolated Python environments
         ref: 1148d32218b7ef6802aa6c86dc59bac230cfda48