diff --git a/Gemfile b/Gemfile
index 326dcbb..e189ae1 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,12 +1,12 @@
 source 'https://rubygems.org'
 
-gem 'builder', '~>3.2.2'
-gem 'css_parser', '~>1.3.6'
-gem 'htmlentities', '~>4.3.4'
-gem 'mustache', '~>1.0.2'
-gem 'nokogiri', '~>1.6.6.2'
-gem 'rdiscount', '~>2.1.8'
-gem 'sinatra', '~>1.4.6'
+gem 'builder', '~> 3.2'
+gem 'css_parser', '~> 1.3'
+gem 'htmlentities', '~> 4.3'
+gem 'mustache', '~> 1.0'
+gem 'nokogiri', '~> 1.6.6'
+gem 'rdiscount', '~> 2.1'
+gem 'sinatra', '~> 1.4'
 
-gem 'rspec', '~>3.3.0'
-gem 'guard-rspec', '~>4.6.4'
+gem 'rspec', '~> 3.3'
+gem 'guard-rspec', '~> 4.6'
diff --git a/Gemfile.lock b/Gemfile.lock
index 2787616..34c0417 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,17 +1,18 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    addressable (2.4.0)
-    builder (3.2.2)
+    addressable (2.5.1)
+      public_suffix (~> 2.0, >= 2.0.2)
+    builder (3.2.3)
     coderay (1.1.1)
-    css_parser (1.3.7)
+    css_parser (1.5.0)
       addressable
-    diff-lcs (1.2.5)
-    ffi (1.9.10)
+    diff-lcs (1.3)
+    ffi (1.9.18)
     formatador (0.2.5)
-    guard (2.13.0)
+    guard (2.14.1)
       formatador (>= 0.2.4)
-      listen (>= 2.7, <= 4.0)
+      listen (>= 2.7, < 4.0)
       lumberjack (~> 1.0)
       nenv (~> 0.1)
       notiffany (~> 0.0)
@@ -19,70 +20,73 @@ GEM
       shellany (~> 0.0)
       thor (>= 0.18.1)
     guard-compat (1.2.1)
-    guard-rspec (4.6.5)
+    guard-rspec (4.7.3)
       guard (~> 2.1)
       guard-compat (~> 1.1)
       rspec (>= 2.99.0, < 4.0)
     htmlentities (4.3.4)
-    listen (3.0.6)
-      rb-fsevent (>= 0.9.3)
-      rb-inotify (>= 0.9.7)
-    lumberjack (1.0.10)
+    listen (3.1.5)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
+      ruby_dep (~> 1.2)
+    lumberjack (1.0.12)
     method_source (0.8.2)
-    mini_portile (0.6.2)
-    mustache (1.0.3)
+    mini_portile2 (2.1.0)
+    mustache (1.0.5)
     nenv (0.3.0)
-    nokogiri (1.6.6.4)
-      mini_portile (~> 0.6.0)
-    notiffany (0.0.8)
+    nokogiri (1.6.8.1)
+      mini_portile2 (~> 2.1.0)
+    notiffany (0.1.1)
       nenv (~> 0.1)
       shellany (~> 0.0)
-    pry (0.10.3)
+    pry (0.10.4)
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
       slop (~> 3.4)
-    rack (1.6.4)
+    public_suffix (2.0.5)
+    rack (1.6.8)
     rack-protection (1.5.3)
       rack
-    rb-fsevent (0.9.7)
-    rb-inotify (0.9.7)
+    rb-fsevent (0.9.8)
+    rb-inotify (0.9.8)
       ffi (>= 0.5.0)
-    rdiscount (2.1.8)
-    rspec (3.3.0)
-      rspec-core (~> 3.3.0)
-      rspec-expectations (~> 3.3.0)
-      rspec-mocks (~> 3.3.0)
-    rspec-core (3.3.2)
-      rspec-support (~> 3.3.0)
-    rspec-expectations (3.3.1)
+    rdiscount (2.2.0.1)
+    rspec (3.6.0)
+      rspec-core (~> 3.6.0)
+      rspec-expectations (~> 3.6.0)
+      rspec-mocks (~> 3.6.0)
+    rspec-core (3.6.0)
+      rspec-support (~> 3.6.0)
+    rspec-expectations (3.6.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.3.0)
-    rspec-mocks (3.3.2)
+      rspec-support (~> 3.6.0)
+    rspec-mocks (3.6.0)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.3.0)
-    rspec-support (3.3.0)
+      rspec-support (~> 3.6.0)
+    rspec-support (3.6.0)
+    ruby_dep (1.5.0)
     shellany (0.0.1)
-    sinatra (1.4.7)
+    sinatra (1.4.8)
       rack (~> 1.5)
       rack-protection (~> 1.4)
       tilt (>= 1.3, < 3)
     slop (3.6.0)
-    thor (0.19.1)
-    tilt (2.0.2)
+    thor (0.19.4)
+    tilt (2.0.7)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
-  builder (~> 3.2.2)
-  css_parser (~> 1.3.6)
-  guard-rspec (~> 4.6.4)
-  htmlentities (~> 4.3.4)
-  mustache (~> 1.0.2)
-  nokogiri (~> 1.6.6.2)
-  rdiscount (~> 2.1.8)
-  rspec (~> 3.3.0)
-  sinatra (~> 1.4.6)
+  builder (~> 3.2)
+  css_parser (~> 1.3)
+  guard-rspec (~> 4.6)
+  htmlentities (~> 4.3)
+  mustache (~> 1.0)
+  nokogiri (~> 1.6.6)
+  rdiscount (~> 2.1)
+  rspec (~> 3.3)
+  sinatra (~> 1.4)
 
 BUNDLED WITH
-   1.11.2
+   1.14.6
diff --git a/bin/minify-js.sh b/bin/minify-js.sh
index da9d1ad..dfb4c9f 100755
--- a/bin/minify-js.sh
+++ b/bin/minify-js.sh
@@ -5,7 +5,7 @@ UGLIFY="node_modules/uglify-js/bin/uglifyjs"
 
 function minify() {
   INPUT="$1"
-  "$UGLIFY" --compress --screw-ie8 "$INPUT"
+  "$UGLIFY" "$INPUT"
 }
 
 if [[ "$1" != "" ]]; then
diff --git a/package.json b/package.json
index 0a8ae73..43d3e0a 100644
--- a/package.json
+++ b/package.json
@@ -5,8 +5,8 @@
   "dependencies": {
     "harp": "^0.23.0",
     "thepusher": "^0.1.4",
-    "uglify-js": "^2.7.5",
-    "snyk": "^1.29.0"
+    "uglify-js": "^3.0.9",
+    "snyk": "^1.30.1"
   },
   "scripts": {
     "snyk-protect": "snyk protect",