diff --git a/.gitea/workflows/image-update-and-release.yaml b/.gitea/workflows/image-update-and-release.yaml
index 19cfa11..e8cc90b 100644
--- a/.gitea/workflows/image-update-and-release.yaml
+++ b/.gitea/workflows/image-update-and-release.yaml
@@ -48,26 +48,26 @@ jobs:
           echo "Checking PHP versions..."
           CURRENT=$(grep -A3 "php:" values.yaml | grep "tag:" | head -1 | sed 's/.*tag: *"\([^"]*\)".*/\1/' | tr -d ' ')
           echo "Current PHP: $CURRENT"
-          
+
           # Docker Hub API v2を使用してタグを取得
-          # パターン: 8.4.12-fpm-alpine3.22 形式
+          # パターン: 8.5.2-fpm-alpine3.23 形式（alpineバージョンは2-3桁に対応）
           LATEST=$(curl -s "https://registry.hub.docker.com/v2/repositories/library/php/tags?page_size=100" | \
             jq -r '.results[].name' | \
-            grep -E '^[0-9]+\.[0-9]+\.[0-9]+-fpm-alpine[0-9]+\.[0-9]+$' | \
+            grep -E '^[0-9]+\.[0-9]+\.[0-9]+-fpm-alpine[0-9]+\.[0-9]{2,3}$' | \
             sort -V | tail -1)
-          
+
           if [ -z "$LATEST" ]; then
             echo "Warning: Could not fetch latest PHP version, using current"
             LATEST="$CURRENT"
           fi
-          
-          # PHPバージョンを抽出 (8.4.12の部分)
+
+          # PHPバージョンを抽出 (8.5.2の部分)
           APP_VERSION=$(echo "$LATEST" | grep -oE '^[0-9]+\.[0-9]+\.[0-9]+')
           if [ -z "$APP_VERSION" ]; then
-            echo "Error: Could not extract PHP version"
+            echo "Error: Could not extract PHP version from: $LATEST"
             exit 1
           fi
-          
+
           echo "Latest PHP: $LATEST"
           echo "PHP version: $APP_VERSION"
           echo "current=$CURRENT" >> $GITHUB_OUTPUT