diff --git a/Gemfile b/Gemfile
index c92a7cbd6..281d6f757 100644
--- a/Gemfile
+++ b/Gemfile
@@ -44,6 +44,6 @@ gem "sinatra", "~> 4.2"
 gem "sinatra-activerecord", "~> 2.0.27"
 gem "sinatra-cross_origin", "~> 0.4.0"
 gem "slack-ruby-client"
-gem "unleash", "~> 5.1.1"
+gem "unleash", "~> 6.6.0"
 gem "wisper", "~> 3.0.0"
 gem "zeitwerk", "~> 2.7.5"
diff --git a/Gemfile.lock b/Gemfile.lock
index 9e1bf42e3..0f167b437 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -62,6 +62,7 @@ GEM
       database_cleaner-core (~> 2.0)
     database_cleaner-core (2.0.1)
     diff-lcs (1.6.2)
+    domain_name (0.6.20240107)
     drb (2.2.3)
     epb-auth-tools (1.2.1)
       jwt (~> 3.2.0)
@@ -80,6 +81,11 @@ GEM
       multipart-post (~> 2.0)
     faraday-net_http (3.4.2)
       net-http (~> 0.5)
+    ffi (1.17.4)
+    ffi (1.17.4-x86_64-linux-gnu)
+    ffi-compiler (1.4.2)
+      ffi (>= 1.15.5)
+      rake
     geocoder (1.8.6)
       base64 (>= 0.1.0)
       csv (>= 3.0.0)
@@ -88,6 +94,14 @@ GEM
     hashdiff (1.2.1)
     hashie (5.1.0)
       logger
+    http (5.3.1)
+      addressable (~> 2.8)
+      http-cookie (~> 1.0)
+      http-form_data (~> 2.2)
+      llhttp-ffi (~> 0.5.0)
+    http-cookie (1.1.6)
+      domain_name (~> 0.5)
+    http-form_data (2.3.0)
     i18n (1.14.8)
       concurrent-ruby (~> 1.0)
     io-console (0.8.2)
@@ -100,7 +114,13 @@ GEM
     jwt (3.2.0)
       base64
     language_server-protocol (3.17.0.5)
+    ld-eventsource (2.2.4)
+      concurrent-ruby (~> 1.0)
+      http (>= 4.4.1, < 6.0.0)
     lint_roller (1.1.0)
+    llhttp-ffi (0.5.1)
+      ffi-compiler (~> 1.0)
+      rake (~> 13.0)
     logger (1.7.0)
     method_source (1.1.0)
     mini_portile2 (2.8.9)
@@ -113,7 +133,6 @@ GEM
     multi_xml (0.9.1)
       bigdecimal (>= 3.1, < 5)
     multipart-post (2.4.1)
-    murmurhash3 (0.1.7)
     mustermann (3.0.4)
       ruby2_keywords (~> 0.0.1)
     namecase (2.0.0)
@@ -270,8 +289,12 @@ GEM
     unicode-display_width (3.2.0)
       unicode-emoji (~> 4.1)
     unicode-emoji (4.2.0)
-    unleash (5.1.1)
-      murmurhash3 (~> 0.1.7)
+    unleash (6.6.0)
+      base64 (~> 0.3.0)
+      ld-eventsource (= 2.2.4)
+      logger (~> 1.6)
+      ostruct (~> 0.1)
+      yggdrasil-engine (~> 1.2.2)
     uri (1.1.1)
     version_gem (1.1.11)
     webmock (3.26.2)
@@ -280,10 +303,12 @@ GEM
       hashdiff (>= 0.4.0, < 2.0.0)
     wisper (3.0.0)
     wisper-rspec (1.1.0)
+    yggdrasil-engine (1.2.2-x86_64-linux)
+      ffi (~> 1.17.2)
     zeitwerk (2.7.5)
 
 PLATFORMS
-  ruby
+  x86_64-linux
 
 DEPENDENCIES
   activerecord (~> 8.1.3)
@@ -319,7 +344,7 @@ DEPENDENCIES
   sinatra-cross_origin (~> 0.4.0)
   slack-ruby-client
   timecop (~> 0.9.11)
-  unleash (~> 5.1.1)
+  unleash (~> 6.6.0)
   webmock (~> 3.26)
   wisper (~> 3.0.0)
   wisper-rspec (~> 1.0, >= 1.0.1)