diff --git a/Gemfile.lock b/Gemfile.lock
index 53074e85..a22c2ddc 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -78,7 +78,8 @@ GEM
       pry (>= 0.13, < 0.15)
     racc (1.7.3)
     rack (2.2.8)
-    rack-protection (3.1.0)
+    rack-protection (3.2.0)
+      base64 (>= 0.1.0)
       rack (~> 2.2, >= 2.2.4)
     rack-ssl-enforcer (0.2.9)
     rack-test (2.1.0)
@@ -99,16 +100,16 @@ GEM
     sass-listen (4.0.0)
       rb-fsevent (~> 0.9, >= 0.9.4)
       rb-inotify (~> 0.9, >= 0.9.7)
-    sinatra (3.1.0)
+    sinatra (3.2.0)
       mustermann (~> 3.0)
       rack (~> 2.2, >= 2.2.4)
-      rack-protection (= 3.1.0)
+      rack-protection (= 3.2.0)
       tilt (~> 2.0)
-    sinatra-contrib (3.1.0)
-      multi_json
+    sinatra-contrib (3.2.0)
+      multi_json (>= 0.0.2)
       mustermann (~> 3.0)
-      rack-protection (= 3.1.0)
-      sinatra (= 3.1.0)
+      rack-protection (= 3.2.0)
+      sinatra (= 3.2.0)
       tilt (~> 2.0)
     sprockets (3.7.2)
       concurrent-ruby (~> 1.0)
@@ -131,7 +132,7 @@ GEM
       eventmachine (~> 1.0, >= 1.0.4)
       rack (>= 1, < 3)
     thor (1.3.0)
-    tilt (2.2.0)
+    tilt (2.3.0)
     tty-pager (0.14.0)
       strings (~> 0.2.0)
       tty-screen (~> 0.8)