diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index f8d59960..ed98c3de 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -85,13 +85,13 @@ jobs:
       run: bundle exec rage routes
     - name: Add a Rake task
       working-directory: ./my_app
-      run: printf "desc \"Prints From Rake\"\nnamespace :hello do\ntask :print do\nend\nend" > lib/tasks/hello.rake
+      run: printf "desc \"Prints From Rake\"\nnamespace :hello do\ntask :print do\nputs('Hello!')\nend\nend" > lib/tasks/hello.rake
     - name: Check available Rake tasks
       working-directory: ./my_app
       run: bundle exec rake --tasks | grep "rake hello:print"
     - name: Run the Rake task
       working-directory: ./my_app
-      run: bundle exec rake hello:print
+      run: test "$(bundle exec rake hello:print)" = "Hello!"
   cli-d:
     runs-on: ubuntu-latest
     name: CLI DB
@@ -130,4 +130,12 @@ jobs:
       run: bundle exec rage s&
     - name: Test the default route
       run: curl --fail http://localhost:3000
-
+    - name: Add a Rake task
+      working-directory: ./my_app
+      run: printf "desc \"Prints From Rake\"\nnamespace :hello do\ntask :print do\nputs('Hello!')\nend\nend" > lib/tasks/hello.rake
+    - name: Check available Rake tasks
+      working-directory: ./my_app
+      run: bundle exec rake --tasks | grep "rake hello:print"
+    - name: Run the Rake task
+      working-directory: ./my_app
+      run: test "$(bundle exec rake hello:print)" = "Hello!"
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 653c3aa4..f26e2886 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 ## [Unreleased]
 
+## [1.21.2] - 2026-03-11
+
+- Fix duplicate Rake tasks (#238).
+
 ## [1.21.1] - 2026-02-27
 
 - Improve styling for the `skills` CLI (#223).
diff --git a/lib/rage/tasks.rb b/lib/rage/tasks.rb
index 95e94293..80c10ad8 100644
--- a/lib/rage/tasks.rb
+++ b/lib/rage/tasks.rb
@@ -28,6 +28,12 @@ def configuration_file
         end
       end)
 
+      begin
+        StandaloneMigrations::MinimalRailtieConfig.paths["lib/tasks"] = []
+      rescue => e
+        warn("WARNING: Failed to disable StandaloneMigrations task auto-loading (#{e.class}: #{e.message})")
+      end
+
       StandaloneMigrations::Tasks.load_tasks
     end
 
diff --git a/lib/rage/version.rb b/lib/rage/version.rb
index 467f9b70..d8dda69d 100644
--- a/lib/rage/version.rb
+++ b/lib/rage/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Rage
-  VERSION = "1.21.1"
+  VERSION = "1.21.2"
 end