diff --git a/Gemfile.lock b/Gemfile.lock
index 582081b..ea16b60 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -159,7 +159,7 @@ GEM
     mini_mime (1.1.2)
     mini_portile2 (2.8.0)
     minitest (5.16.2)
-    mustermann (1.1.1)
+    mustermann (3.0.0)
       ruby2_keywords (~> 0.0.1)
     net-scp (2.0.0)
       net-ssh (>= 2.6.5, < 6.0.0)
@@ -184,7 +184,7 @@ GEM
     rack (2.2.4)
     rack-cors (1.0.5)
       rack (>= 1.6.0)
-    rack-protection (2.2.0)
+    rack-protection (3.0.4)
       rack
     rack-test (2.0.2)
       rack (>= 1.3)
@@ -255,10 +255,10 @@ GEM
     sdoc (1.0.0)
       rdoc (>= 5.0)
     sexp_processor (4.16.1)
-    sinatra (2.2.0)
-      mustermann (~> 1.0)
-      rack (~> 2.2)
-      rack-protection (= 2.2.0)
+    sinatra (3.0.4)
+      mustermann (~> 3.0)
+      rack (~> 2.2, >= 2.2.4)
+      rack-protection (= 3.0.4)
       tilt (~> 2.0)
     skinny (0.2.2)
       eventmachine (~> 1.0)
@@ -288,7 +288,7 @@ GEM
       rack (>= 1, < 3)
     thor (0.20.3)
     thread_safe (0.3.6)
-    tilt (2.0.10)
+    tilt (2.0.11)
     tinymce-rails (6.0.3.1)
       railties (>= 3.1.1)
     twitter-bootstrap-rails (5.0.0)