diff --git a/Gemfile.lock b/Gemfile.lock
index 4d043631b..90e49ea91 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -128,7 +128,7 @@ GEM
     hexpress (1.2.0)
     highline (1.6.20)
     hike (1.2.3)
-    hiredis (0.4.5)
+    hiredis (0.5.1)
     i18n (0.6.9)
     image_optim (0.9.1)
       exifr (~> 1.1.3)