diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
index f712c94..5a76c97 100644
--- a/.github/workflows/build-and-test.yml
+++ b/.github/workflows/build-and-test.yml
@@ -105,7 +105,6 @@ jobs:
           - '8.0.0'
           - '8.1.0'
           - '8.2.0'
-          - '8.3.0-alpha16'
         include:
           - agp_version: '4.2.0'
             gradle_version: '6.7.1'
@@ -130,9 +129,6 @@ jobs:
           - agp_version: '8.2.0'
             gradle_version: '8.3'
             java_version: '17'
-          - agp_version: '8.3.0-alpha16'
-            gradle_version: '8.4'
-            java_version: '17'
 
     steps:
       - uses: actions/checkout@v3
diff --git a/README.md b/README.md
index b462d4b..c798044 100644
--- a/README.md
+++ b/README.md
@@ -90,7 +90,9 @@ This plugin does not work with non-app modules and/or library modules correctly.
 
 ### Canary/Beta support table
 
-> As of 2023 Dec 1st, Iguana Canary being tested but not for production ready.
+We are not supporting Canary(Alpha) versions because of API stability. Please wait for beta releases or open an issue to support Canary versions.
+
+> As of 2023 Dec 1st, Iguana Canary doesn't work.
 
 See the test matrix of [.github/workflows/build-and-test.yml](./.github/workflows/build-and-test.yml) for the latest information.
 
diff --git a/README_JP.md b/README_JP.md
index 0df76f7..f5b7349 100644
--- a/README_JP.md
+++ b/README_JP.md
@@ -88,7 +88,9 @@ DeployGate Gradle プラグインは非 app モジュールや android-library 
 
 ### Canary/Beta サポート情報
 
-> 2023/12/01現在、Iguana Canary版をテスト中です
+API仕様が頻繁に変わる可能性があることから、Canary(Alpha) バージョンのサポートは積極的に行っていません。Beta 版リリースをお待ちいただくか、Issue を起票してください。
+
+> 2023/12/01現在、Iguana Canary版は動作しません
 
  [.github/workflows/build-and-test.yml](./.github/workflows/build-and-test.yml) を参考にしてください
 
diff --git a/run_acceptance_tests.bash b/run_acceptance_tests.bash
index 84770b0..2e8cb45 100755
--- a/run_acceptance_tests.bash
+++ b/run_acceptance_tests.bash
@@ -19,6 +19,5 @@ done < <(cat<<EOF
 8.0.0 8.0
 8.1.0 8.0
 8.2.0 8.3
-8.3.0-alpha16 8.4
 EOF
 )