diff --git a/Gemfile b/Gemfile
index 7f95be4f8aa..2b4a6350049 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,8 +6,6 @@ git_source(:github) { |repo| "https://github.com/#{repo}.git" }
 
 gemspec
 
-gem "rbtree", github: "zzak/rbtree" # Ruby 3.2 compatibility
-
 gem "minitest", ">= 5.15.0"
 
 # We need a newish Rake since Active Job sets its test tasks' descriptions.
diff --git a/Gemfile.lock b/Gemfile.lock
index 1e6a27de004..6f534dc438d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -38,12 +38,6 @@ GIT
       event_emitter
       websocket
 
-GIT
-  remote: https://github.com/zzak/rbtree.git
-  revision: 6f678e50f543c43d25c018ae108c7e3de88b703a
-  specs:
-    rbtree (0.4.4)
-
 PATH
   remote: .
   specs:
@@ -423,6 +417,7 @@ GEM
     rb-fsevent (0.11.0)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
+    rbtree (0.4.5)
     rdoc (6.3.3)
     redcarpet (3.2.3)
     redis (4.5.1)
@@ -625,7 +620,6 @@ DEPENDENCIES
   rack-cache (~> 1.2)
   rails!
   rake (>= 11.1)
-  rbtree!
   redcarpet (~> 3.2.3)
   redis (~> 4.0)
   redis-namespace