diff --git a/sites/all/themes/slac/Gemfile.lock b/sites/all/themes/slac/Gemfile.lock
index b353a7f8..3937d1c1 100644
--- a/sites/all/themes/slac/Gemfile.lock
+++ b/sites/all/themes/slac/Gemfile.lock
@@ -17,8 +17,8 @@ GEM
       sass (>= 3.3.0, < 3.5)
     compass-import-once (1.0.5)
       sass (>= 3.2, < 3.5)
-    ffi (1.9.18)
-    ffi (1.9.18-x64-mingw32)
+    ffi (1.11.1)
+    ffi (1.11.1-x64-mingw32)
     json (2.1.0)
     listen (1.1.6)
       rb-fsevent (>= 0.9.3)