diff --git a/Gemfile b/Gemfile
index db4a138..04f2e90 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,4 +4,4 @@ gem 'rails', '~> 6.1'
 
 gem 'listen'
 gem 'sqlite3'
-gem 'split', '~> 4.0.1', :require => 'split/dashboard'
+gem 'split', '~> 4.0.2', :require => 'split/dashboard'
diff --git a/Gemfile.lock b/Gemfile.lock
index 794074e..91637f7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -62,6 +62,7 @@ GEM
       zeitwerk (~> 2.3)
     builder (3.2.4)
     concurrent-ruby (1.1.9)
+    connection_pool (2.3.0)
     crass (1.0.6)
     erubi (1.10.0)
     ffi (1.15.5)
@@ -82,7 +83,7 @@ GEM
     mini_mime (1.1.0)
     mini_portile2 (2.8.0)
     minitest (5.14.4)
-    mustermann (1.1.1)
+    mustermann (3.0.0)
       ruby2_keywords (~> 0.0.1)
     nio4r (2.5.7)
     nokogiri (1.13.6)
@@ -92,7 +93,7 @@ GEM
       racc (~> 1.4)
     racc (1.6.0)
     rack (2.2.6.3)
-    rack-protection (2.2.0)
+    rack-protection (3.0.5)
       rack
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
@@ -126,15 +127,18 @@ GEM
     rb-fsevent (0.11.0)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
-    redis (4.6.0)
+    redis (5.0.6)
+      redis-client (>= 0.9.0)
+    redis-client (0.14.0)
+      connection_pool
     ruby2_keywords (0.0.5)
     rubystats (0.3.0)
-    sinatra (2.2.0)
-      mustermann (~> 1.0)
-      rack (~> 2.2)
-      rack-protection (= 2.2.0)
+    sinatra (3.0.5)
+      mustermann (~> 3.0)
+      rack (~> 2.2, >= 2.2.4)
+      rack-protection (= 3.0.5)
       tilt (~> 2.0)
-    split (4.0.1)
+    split (4.0.2)
       redis (>= 4.2)
       rubystats (>= 0.3.0)
       sinatra (>= 1.2.6)
@@ -147,7 +151,7 @@ GEM
       sprockets (>= 3.0.0)
     sqlite3 (1.4.2)
     thor (1.1.0)
-    tilt (2.0.10)
+    tilt (2.1.0)
     tzinfo (2.0.4)
       concurrent-ruby (~> 1.0)
     websocket-driver (0.7.5)
@@ -163,7 +167,7 @@ PLATFORMS
 DEPENDENCIES
   listen
   rails (~> 6.1)
-  split (~> 4.0.1)
+  split (~> 4.0.2)
   sqlite3
 
 BUNDLED WITH