diff --git a/Gemfile.lock b/Gemfile.lock
index 636f566..3aca5e2 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -9,8 +9,7 @@ GEM
       tzinfo (~> 1.1)
     addressable (2.4.0)
     backports (3.6.8)
-    bourbon (4.2.7)
-      sass (~> 3.4)
+    bourbon (6.0.0)
       thor (~> 0.19)
     coffee-script (2.4.1)
       coffee-script-source
@@ -96,11 +95,11 @@ GEM
     rb-fsevent (0.9.7)
     rb-inotify (0.9.7)
       ffi (>= 0.5.0)
-    sass (3.4.22)
+    sass (3.4.25)
     sass-globbing (1.1.5)
       sass (>= 3.1)
     servolux (0.12.0)
-    thor (0.19.1)
+    thor (0.20.3)
     thread_safe (0.3.5)
     tilt (1.4.1)
     tzinfo (1.2.2)