diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 031b45c..72c07c6 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -67,3 +67,4 @@ jobs:
         with:
           files:
             ${{ steps.env.outputs.package_paths }}
+          prerelease: ${{ contains(github.ref, 'canary') }}
\ No newline at end of file
diff --git a/CHANGES.md b/CHANGES.md
index bab4607..6b65335 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -48,6 +48,8 @@
   - @voluntas
 - [CHANGE] GitHub Actions の ubuntu-latest を ubuntu-24.04 に変更
   - @voluntas
+- [FIX] canary リリースの時は prerelease フラグをつける
+  - @miosakuma
 
 ## 2024.1.0