diff --git a/Gemfile.lock b/Gemfile.lock
index 20053586d..cd5e395b0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -94,7 +94,7 @@ GEM
     rb-fsevent (0.11.2)
     rb-inotify (0.11.1)
       ffi (~> 1.0)
-    rdoc (6.11.0)
+    rdoc (6.13.1)
       psych (>= 4.0.0)
     regexp_parser (2.10.0)
     rspec (3.13.0)
@@ -154,7 +154,7 @@ GEM
       strscan (>= 1.0.0)
       terminal-table (>= 2, < 5)
       uri (>= 0.12.0)
-    stringio (3.1.5)
+    stringio (3.1.6)
     strong_json (2.1.2)
     strscan (3.1.2)
     tempfile (0.3.1)