diff --git a/Gemfile.lock b/Gemfile.lock
index 211fe5c020..bca4851cfe 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -23,7 +23,7 @@ GEM
       xpath (~> 3.2)
     chronic (0.10.2)
     chunky_png (1.3.11)
-    coderay (1.1.2)
+    coderay (1.1.3)
     coffee-script (2.4.1)
       coffee-script-source
       execjs
@@ -63,7 +63,7 @@ GEM
       faraday (~> 1.0)
     fast_blank (1.0.0)
     fastimage (2.1.7)
-    ffi (1.12.2)
+    ffi (1.13.1)
     github-markdown (0.6.9)
     govuk_schemas (4.0.0)
       json-schema (~> 2.8.0)
@@ -176,9 +176,9 @@ GEM
       tilt (>= 1.4.1, < 3)
     padrino-support (0.13.3.4)
       activesupport (>= 3.1)
-    parallel (1.19.1)
-    parser (2.7.1.3)
-      ast (~> 2.4.0)
+    parallel (1.19.2)
+    parser (2.7.1.4)
+      ast (~> 2.4.1)
     pry (0.13.1)
       coderay (~> 1.1)
       method_source (~> 1.0)
@@ -198,7 +198,7 @@ GEM
     redcarpet (3.5.0)
     regexp_parser (1.7.1)
     rexml (3.2.4)
-    rouge (3.19.0)
+    rouge (3.20.0)
     rspec (3.9.0)
       rspec-core (~> 3.9.0)
       rspec-expectations (~> 3.9.0)
@@ -241,7 +241,7 @@ GEM
     ruby-progressbar (1.10.1)
     safe_yaml (1.0.5)
     sass (3.4.25)
-    sassc (2.3.0)
+    sassc (2.4.0)
       ffi (~> 1.9)
     sawyer (0.8.2)
       addressable (>= 2.3.5)
@@ -251,7 +251,7 @@ GEM
       docile (~> 1.1)
       simplecov-html (~> 0.11)
     simplecov-html (0.12.2)
-    sprockets (4.0.0)
+    sprockets (4.0.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
     temple (0.8.2)