diff --git a/Gemfile.lock b/Gemfile.lock
index b7a14e2..26cb51d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,3 +1,10 @@
+GIT
+  remote: https://github.com/stomar/sqlite3-ruby
+  revision: 30c93813228db0fd34b9cf5809ed8609c2535b29
+  branch: add-dlfcn
+  specs:
+    sqlite3 (1.3.13.20180326210955)
+
 GEM
   remote: https://rubygems.org/
   specs:
@@ -61,9 +68,10 @@ GEM
       execjs
     coffee-script-source (1.12.2)
     concurrent-ruby (1.1.3)
-    crass (1.0.4)
+    crass (1.0.6)
     erubi (1.7.1)
     execjs (2.7.0)
+    ffi (1.9.25)
     ffi (1.9.25-x86-mingw32)
     globalid (0.4.1)
       activesupport (>= 4.2.0)
@@ -72,21 +80,25 @@ GEM
     jbuilder (2.8.0)
       activesupport (>= 4.2.0)
       multi_json (>= 1.2)
-    loofah (2.2.3)
+    loofah (2.18.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
       mini_mime (>= 0.1.1)
     method_source (0.9.2)
     mini_mime (1.0.1)
-    mini_portile2 (2.3.0)
+    mini_portile2 (2.8.0)
     minitest (5.11.3)
     multi_json (1.13.1)
     nio4r (2.3.1)
-    nokogiri (1.8.5-x86-mingw32)
-      mini_portile2 (~> 2.3.0)
+    nokogiri (1.13.6)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
+    nokogiri (1.13.6-x86-mingw32)
+      racc (~> 1.4)
     public_suffix (3.0.3)
     puma (3.12.0)
+    racc (1.6.0)
     rack (2.0.6)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -105,8 +117,8 @@ GEM
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
-    rails-html-sanitizer (1.0.4)
-      loofah (~> 2.2, >= 2.2.2)
+    rails-html-sanitizer (1.4.3)
+      loofah (~> 2.3)
     railties (5.1.6.1)
       actionpack (= 5.1.6.1)
       activesupport (= 5.1.6.1)
@@ -139,7 +151,6 @@ GEM
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
-    sqlite3 (1.3.13-x86-mingw32)
     thor (0.20.3)
     thread_safe (0.3.6)
     tilt (2.0.9)
@@ -164,6 +175,7 @@ GEM
       nokogiri (~> 1.8)
 
 PLATFORMS
+  ruby
   x86-mingw32
 
 DEPENDENCIES
@@ -175,7 +187,7 @@ DEPENDENCIES
   rails (~> 5.1.3)
   sass-rails (~> 5.0)
   selenium-webdriver
-  sqlite3
+  sqlite3!
   turbolinks (~> 5)
   tzinfo-data
   uglifier (>= 1.3.0)