diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 0902614c06..003fca750d 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -11,8 +11,8 @@ on:
 
 env:
   VOICEVOX_ENGINE_REPO_URL: "https://github.com/VOICEVOX/voicevox_engine"
-  VOICEVOX_ENGINE_VERSION: 0.12.1
-  VOICEVOX_RESOURCE_VERSION: 0.12.0
+  VOICEVOX_ENGINE_VERSION: 0.12.2
+  VOICEVOX_RESOURCE_VERSION: 0.12.1
   VOICEVOX_EDITOR_VERSION:
     |- # releaseのときはタグが、それ以外は999.999.999がバージョン名に
     ${{ github.event.release.tag_name != '' && github.event.release.tag_name || '999.999.999' }}
diff --git a/public/updateInfos.json b/public/updateInfos.json
index 8aaad46003..0bec870db9 100644
--- a/public/updateInfos.json
+++ b/public/updateInfos.json
@@ -1,4 +1,9 @@
 [
+  {
+    "version": "0.12.3",
+    "descriptions": ["キャラクター「もち子さん」を追加"],
+    "contributors": []
+  },
   {
     "version": "0.12.2",
     "descriptions": ["GPU版でイントネーションが不自然になる問題を修正"],