diff --git a/package-lock.json b/package-lock.json
index 9f1d43a3..5f7cb0f5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14,6 +14,7 @@
         "cors": "^2.8.5",
         "cross-spawn": "^7.0.5",
         "eventsource": "^3.0.2",
+        "eventsource-parser": "^3.0.0",
         "express": "^5.0.1",
         "express-rate-limit": "^7.5.0",
         "pkce-challenge": "^5.0.0",
diff --git a/package.json b/package.json
index 8feb10af..31bc3562 100644
--- a/package.json
+++ b/package.json
@@ -54,6 +54,7 @@
     "cors": "^2.8.5",
     "cross-spawn": "^7.0.5",
     "eventsource": "^3.0.2",
+    "eventsource-parser": "^3.0.0",
     "express": "^5.0.1",
     "express-rate-limit": "^7.5.0",
     "pkce-challenge": "^5.0.0",