diff --git a/.github/workflows/build-engine-container.yml b/.github/workflows/build-engine-container.yml
index 414292660..1496fef25 100644
--- a/.github/workflows/build-engine-container.yml
+++ b/.github/workflows/build-engine-container.yml
@@ -14,8 +14,8 @@ on:
 
 env:
   IMAGE_NAME: ${{ vars.DOCKERHUB_USERNAME }}/voicevox_engine
-  VOICEVOX_RESOURCE_VERSION: "0.21.0"
-  VOICEVOX_CORE_VERSION: "0.15.4"
+  VOICEVOX_RESOURCE_VERSION: "0.21.1"
+  VOICEVOX_CORE_VERSION: "0.15.5"
 
 defaults:
   run:
diff --git a/.github/workflows/build-engine-package.yml b/.github/workflows/build-engine-package.yml
index 4e7b21686..199932342 100644
--- a/.github/workflows/build-engine-package.yml
+++ b/.github/workflows/build-engine-package.yml
@@ -25,8 +25,8 @@ on:
         default: false
 
 env:
-  VOICEVOX_RESOURCE_VERSION: "0.21.0"
-  VOICEVOX_CORE_VERSION: "0.15.4"
+  VOICEVOX_RESOURCE_VERSION: "0.21.1"
+  VOICEVOX_CORE_VERSION: "0.15.5"
 
 defaults:
   run:
diff --git a/Dockerfile b/Dockerfile
index 92724d94d..4ebdab3fd 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -25,7 +25,7 @@ EOF
 # assert VOICEVOX_CORE_VERSION >= 0.11.0 (ONNX)
 ARG TARGETPLATFORM
 ARG USE_GPU=false
-ARG VOICEVOX_CORE_VERSION=0.15.4
+ARG VOICEVOX_CORE_VERSION=0.15.5
 
 RUN <<EOF
     set -eux
@@ -283,7 +283,7 @@ RUN <<EOF
 EOF
 
 # Download Resource
-ARG VOICEVOX_RESOURCE_VERSION=0.21.0
+ARG VOICEVOX_RESOURCE_VERSION=0.21.1
 RUN <<EOF
     set -eux
 
diff --git a/resources/default.csv b/resources/default.csv
index c67ed8c69..601ebe9ae 100644
--- a/resources/default.csv
+++ b/resources/default.csv
@@ -45,6 +45,7 @@
 ビィ,1351,1351,7000,名詞,固有名詞,人名,名,*,*,*,ビー,ビー,1/2,C1
 ひまり,1351,1351,7000,名詞,固有名詞,人名,名,*,*,*,ヒマリ,ヒマリ,0/3,C1
 紅桜,1351,1351,7000,名詞,固有名詞,人名,名,*,*,*,ベニザクラ,ベニザクラ,3/5,C1
+Ｖｏｉｄｏｌｌ,1351,1351,0,名詞,固有名詞,人名,名,*,*,*,ボイドール,ボイドール,3/5,C1
 聖騎士,1350,1350,8600,名詞,固有名詞,人名,姓,*,*,*,ホーリーナイト,ホーリーナイト,5/7,C1
 ＷｈｉｔｅＣＵＬ,1351,1351,0,名詞,固有名詞,人名,名,*,*,*,ホワイトカル,ホワイトカル,5/6,C1
 まろん,1351,1351,7450,名詞,固有名詞,人名,名,*,*,*,マロン,マロン,1/3,C1
diff --git a/resources/engine_manifest_assets/update_infos.json b/resources/engine_manifest_assets/update_infos.json
index 04c8788c4..3dbe6f676 100644
--- a/resources/engine_manifest_assets/update_infos.json
+++ b/resources/engine_manifest_assets/update_infos.json
@@ -1,4 +1,9 @@
 [
+  {
+    "version": "0.21.1",
+    "descriptions": ["キャラクター「Voidoll」を追加"],
+    "contributors": []
+  },
   {
     "version": "0.21.0",
     "descriptions": ["開発環境の向上"],
diff --git a/test/e2e/single_api/engine_info/__snapshots__/test_engine_manifest/test_get_engine_manifest_200.json b/test/e2e/single_api/engine_info/__snapshots__/test_engine_manifest/test_get_engine_manifest_200.json
index 209c53398..d0562ff63 100644
--- a/test/e2e/single_api/engine_info/__snapshots__/test_engine_manifest/test_get_engine_manifest_200.json
+++ b/test/e2e/single_api/engine_info/__snapshots__/test_engine_manifest/test_get_engine_manifest_200.json
@@ -30,6 +30,13 @@
   "supported_vvlib_manifest_version": null,
   "terms_of_service": "dummy teams of service",
   "update_infos": [
+    {
+      "contributors": [],
+      "descriptions": [
+        "キャラクター「Voidoll」を追加"
+      ],
+      "version": "0.21.1"
+    },
     {
       "contributors": [
         "Hiroshiba",