diff --git a/slate/Gemfile.lock b/slate/Gemfile.lock
index d4af72919fe..35348dbee16 100644
--- a/slate/Gemfile.lock
+++ b/slate/Gemfile.lock
@@ -21,7 +21,8 @@ GEM
       multi_json (~> 1.0)
     ffi (1.9.3)
     fssm (0.2.10)
-    haml (4.0.5)
+    haml (5.2.0)
+      temple (>= 0.8.0)
       tilt
     hike (1.2.3)
     http_parser.rb (0.5.3)
@@ -93,6 +94,7 @@ GEM
     sprockets-sass (1.0.3)
       sprockets (~> 2.0)
       tilt (~> 1.1)
+    temple (0.8.2)
     therubyracer (0.12.1)
       libv8 (~> 3.16.14.0)
       ref