diff --git a/Gemfile.lock b/Gemfile.lock
index afbdd12..8de9226 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -91,7 +91,8 @@ GEM
       ruby2_keywords (~> 0.0.1)
     mutex_m (0.2.0)
     rack (2.2.8)
-    rack-protection (3.1.0)
+    rack-protection (3.2.0)
+      base64 (>= 0.1.0)
       rack (~> 2.2, >= 2.2.4)
     raindrops (0.20.1)
     redis (5.0.8)
@@ -103,16 +104,16 @@ GEM
       faraday (>= 1)
       faraday-multipart (>= 1)
     ruby2_keywords (0.0.5)
-    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)
     slack-ruby-bot (0.16.1)
       activesupport
@@ -126,7 +127,7 @@ GEM
       hashie
     terminal-table (3.0.2)
       unicode-display_width (>= 1.1.1, < 3)
-    tilt (2.2.0)
+    tilt (2.3.0)
     timers (4.3.5)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)