diff --git a/.gitea/workflows/dev.yml b/.gitea/workflows/dev.yml
index c30e352..769a0df 100644
--- a/.gitea/workflows/dev.yml
+++ b/.gitea/workflows/dev.yml
@@ -97,7 +97,7 @@ jobs:
 
           RELEASE_ID=""
           if [ "$HTTP_CODE" -eq 200 ]; then
-            RELEASE_ID=$(echo "$BODY" | grep -o '"id":[0-9]*' | head -n1 | cut -d: -f2)
+            RELEASE_ID=$(echo "$BODY" | jq -r '.id // empty' 2>/dev/null || echo "$BODY" | grep -o '"id":[0-9]*' | head -n1 | cut -d: -f2)
             echo "Bestehendes Release gefunden (ID: ${RELEASE_ID})."
           else
             echo "Erstelle neues Preview-Release ${TAG_NAME}..."
@@ -117,7 +117,7 @@ jobs:
               -H "Content-Type: application/json" \
               -d "$CREATE_PAYLOAD" \
               "${GITEA_URL}/api/v1/repos/${REPO}/releases")
-            RELEASE_ID=$(echo "$CREATE_RESP" | grep -o '"id":[0-9]*' | head -n1 | cut -d: -f2)
+            RELEASE_ID=$(echo "$CREATE_RESP" | jq -r '.id // empty' 2>/dev/null || echo "$CREATE_RESP" | grep -o '"id":[0-9]*' | head -n1 | cut -d: -f2)
             echo "Neues Preview-Release erstellt (ID: ${RELEASE_ID})."
           fi
 
@@ -135,8 +135,8 @@ jobs:
             filename="$(basename "$file")"
             echo "Lade Release-Asset hoch: $filename"
 
-            ASSET_ID=$(echo "$EXISTING_ASSETS_JSON" | grep -B2 "\"name\":\"${filename}\"" | grep -o '"id":[0-9]*' | head -n1 | cut -d: -f2 || true)
-            if [ -n "$ASSET_ID" ]; then
+            ASSET_ID=$(echo "$EXISTING_ASSETS_JSON" | jq -r --arg name "$filename" '.[]? | select(.name == $name) | .id' 2>/dev/null | head -n1 || true)
+            if [ -n "$ASSET_ID" ] && [ "$ASSET_ID" != "null" ]; then
               echo "Lösche altes Asset mit ID ${ASSET_ID}..."
               curl -s -X DELETE \
                 -H "Authorization: token ${TOKEN}" \
diff --git a/.gitea/workflows/main.yml b/.gitea/workflows/main.yml
index 2043dea..9f24c2d 100644
--- a/.gitea/workflows/main.yml
+++ b/.gitea/workflows/main.yml
@@ -97,7 +97,7 @@ jobs:
 
           RELEASE_ID=""
           if [ "$HTTP_CODE" -eq 200 ]; then
-            RELEASE_ID=$(echo "$BODY" | grep -o '"id":[0-9]*' | head -n1 | cut -d: -f2)
+            RELEASE_ID=$(echo "$BODY" | jq -r '.id // empty' 2>/dev/null || echo "$BODY" | grep -o '"id":[0-9]*' | head -n1 | cut -d: -f2)
             echo "Bestehendes Release gefunden (ID: ${RELEASE_ID})."
           else
             echo "Erstelle neues Release ${TAG_NAME}..."
@@ -117,7 +117,7 @@ jobs:
               -H "Content-Type: application/json" \
               -d "$CREATE_PAYLOAD" \
               "${GITEA_URL}/api/v1/repos/${REPO}/releases")
-            RELEASE_ID=$(echo "$CREATE_RESP" | grep -o '"id":[0-9]*' | head -n1 | cut -d: -f2)
+            RELEASE_ID=$(echo "$CREATE_RESP" | jq -r '.id // empty' 2>/dev/null || echo "$CREATE_RESP" | grep -o '"id":[0-9]*' | head -n1 | cut -d: -f2)
             echo "Neues Release erstellt (ID: ${RELEASE_ID})."
           fi
 
@@ -135,8 +135,8 @@ jobs:
             filename="$(basename "$file")"
             echo "Lade Release-Asset hoch: $filename"
 
-            ASSET_ID=$(echo "$EXISTING_ASSETS_JSON" | grep -B2 "\"name\":\"${filename}\"" | grep -o '"id":[0-9]*' | head -n1 | cut -d: -f2 || true)
-            if [ -n "$ASSET_ID" ]; then
+            ASSET_ID=$(echo "$EXISTING_ASSETS_JSON" | jq -r --arg name "$filename" '.[]? | select(.name == $name) | .id' 2>/dev/null | head -n1 || true)
+            if [ -n "$ASSET_ID" ] && [ "$ASSET_ID" != "null" ]; then
               echo "Lösche altes Asset mit ID ${ASSET_ID}..."
               curl -s -X DELETE \
                 -H "Authorization: token ${TOKEN}" \