diff --git a/Gemfile b/Gemfile
index a64ca69..4d7348e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -8,7 +8,7 @@ gem "activerecord"
 gem "bcrypt"
 gem "dotenv"
 gem "dry-validation"
-gem "grape", "~> 1.7", ">= 1.7.1"
+gem "grape", "~> 1.8"
 gem "grape-entity"
 gem "pg"
 gem "puma"
diff --git a/Gemfile.lock b/Gemfile.lock
index aa4c222..2dbe034 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -23,7 +23,7 @@ GEM
     backports (3.23.0)
     base64 (0.2.0)
     bcrypt (3.1.18)
-    bigdecimal (3.1.7)
+    bigdecimal (3.1.8)
     brakeman (6.1.2)
       racc
     builder (3.2.4)
@@ -68,19 +68,20 @@ GEM
     docile (1.4.0)
     dotenv (2.7.6)
     drb (2.2.1)
-    dry-configurable (0.15.0)
-      concurrent-ruby (~> 1.0)
+    dry-configurable (0.16.1)
       dry-core (~> 0.6)
-    dry-container (0.9.0)
+      zeitwerk (~> 2.6)
+    dry-container (0.11.0)
       concurrent-ruby (~> 1.0)
-      dry-configurable (~> 0.13, >= 0.13.0)
-    dry-core (0.7.1)
+    dry-core (0.9.1)
       concurrent-ruby (~> 1.0)
-    dry-inflector (0.2.1)
+      zeitwerk (~> 2.6)
+    dry-inflector (0.3.0)
     dry-initializer (3.1.1)
-    dry-logic (1.2.0)
+    dry-logic (1.3.0)
       concurrent-ruby (~> 1.0)
-      dry-core (~> 0.5, >= 0.5)
+      dry-core (~> 0.9, >= 0.9)
+      zeitwerk (~> 2.6)
     dry-schema (1.9.2)
       concurrent-ruby (~> 1.0)
       dry-configurable (~> 0.13, >= 0.13.0)
@@ -88,12 +89,13 @@ GEM
       dry-initializer (~> 3.0)
       dry-logic (~> 1.0)
       dry-types (~> 1.5)
-    dry-types (1.5.1)
+    dry-types (1.6.1)
       concurrent-ruby (~> 1.0)
       dry-container (~> 0.3)
-      dry-core (~> 0.5, >= 0.5)
+      dry-core (~> 0.9, >= 0.9)
       dry-inflector (~> 0.1, >= 0.1.2)
-      dry-logic (~> 1.0, >= 1.0.2)
+      dry-logic (~> 1.3, >= 1.3)
+      zeitwerk (~> 2.6)
     dry-validation (1.8.1)
       concurrent-ruby (~> 1.0)
       dry-container (~> 0.7, >= 0.7.1)
@@ -103,17 +105,17 @@ GEM
     factory_bot (6.2.1)
       activesupport (>= 5.0.0)
     gherkin (5.1.0)
-    grape (1.7.1)
-      activesupport
+    grape (1.8.0)
+      activesupport (>= 5)
       builder
       dry-types (>= 1.1)
       mustermann-grape (~> 1.0.0)
-      rack (>= 1.3.0, < 3)
+      rack (>= 1.3.0)
       rack-accept
     grape-entity (0.10.1)
       activesupport (>= 3.0.0)
       multi_json (>= 1.3.2)
-    i18n (1.14.4)
+    i18n (1.14.5)
       concurrent-ruby (~> 1.0)
     io-console (0.6.0)
     irb (1.6.4)
@@ -126,7 +128,7 @@ GEM
     minitest (5.22.3)
     multi_json (1.15.0)
     multi_test (1.1.0)
-    mustermann (2.0.2)
+    mustermann (3.0.0)
       ruby2_keywords (~> 0.0.1)
     mustermann-grape (1.0.2)
       mustermann (>= 1.0.0)
@@ -148,11 +150,14 @@ GEM
     puma (6.4.2)
       nio4r (~> 2.0)
     racc (1.7.3)
-    rack (2.2.8.1)
+    rack (3.0.10)
     rack-accept (0.4.5)
       rack (>= 0.4)
-    rack-protection (2.2.3)
-      rack
+    rack-protection (4.0.0)
+      base64 (>= 0.1.0)
+      rack (>= 3.0.0, < 4)
+    rack-session (2.0.0)
+      rack (>= 3.0.0)
     rack-test (2.1.0)
       rack (>= 1.3)
     rainbow (3.1.1)
@@ -229,16 +234,17 @@ GEM
       json
       simplecov
     simplecov_json_formatter (0.1.4)
-    sinatra (2.2.3)
-      mustermann (~> 2.0)
-      rack (~> 2.2)
-      rack-protection (= 2.2.3)
+    sinatra (4.0.0)
+      mustermann (~> 3.0)
+      rack (>= 3.0.0, < 4)
+      rack-protection (= 4.0.0)
+      rack-session (>= 2.0.0, < 3)
       tilt (~> 2.0)
-    sinatra-contrib (2.2.3)
-      multi_json
-      mustermann (~> 2.0)
-      rack-protection (= 2.2.3)
-      sinatra (= 2.2.3)
+    sinatra-contrib (4.0.0)
+      multi_json (>= 0.0.2)
+      mustermann (~> 3.0)
+      rack-protection (= 4.0.0)
+      sinatra (= 4.0.0)
       tilt (~> 2.0)
     slim (5.2.1)
       temple (~> 0.10.0)
@@ -255,6 +261,7 @@ GEM
     websocket-extensions (0.1.5)
     xpath (3.2.0)
       nokogiri (~> 1.8)
+    zeitwerk (2.6.13)
 
 PLATFORMS
   ruby
@@ -269,7 +276,7 @@ DEPENDENCIES
   dotenv
   dry-validation
   factory_bot
-  grape (~> 1.7, >= 1.7.1)
+  grape (~> 1.8)
   grape-entity
   pg
   poltergeist (>= 1.4.0)