diff --git a/package-lock.json b/package-lock.json
index 56b9f40..c67a34d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "1.7.7",
       "license": "MIT",
       "dependencies": {
-        "eventsource": "^2.0.2",
+        "eventsource": "^4.0.0",
         "node-fetch": "^2",
         "rfc2047": "^4.0.1",
         "validator": "^13.7.0"
@@ -1335,11 +1335,24 @@
       "license": "MIT"
     },
     "node_modules/eventsource": {
-      "version": "2.0.2",
-      "resolved": "https://registry.npmjs.org/eventsource/-/eventsource-2.0.2.tgz",
-      "integrity": "sha512-IzUmBGPR3+oUG9dUeXynyNmf91/3zUSJg1lCktzKw47OXuhco54U3r9B7O4XX+Rb1Itm9OZ2b0RkTs10bICOxA==",
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/eventsource/-/eventsource-4.1.0.tgz",
+      "integrity": "sha512-2GuF51iuHX6A9xdTccMTsNb7VO0lHZihApxhvQzJB5A03DvHDd2FQepodbMaztPBmBcE/ox7o2gqaxGhYB9LhQ==",
+      "license": "MIT",
+      "dependencies": {
+        "eventsource-parser": "^3.0.1"
+      },
+      "engines": {
+        "node": ">=20.0.0"
+      }
+    },
+    "node_modules/eventsource-parser": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/eventsource-parser/-/eventsource-parser-3.1.0.tgz",
+      "integrity": "sha512-kJezFj9YFAMLeORyi7aCLxLbD5/qWMQnoMVlVPyHIll7lgRJCc3JVln9Vgl9nwQi0YkMnhdGTMNn7CkRRAptMg==",
+      "license": "MIT",
       "engines": {
-        "node": ">=12.0.0"
+        "node": ">=18.0.0"
       }
     },
     "node_modules/fast-deep-equal": {
diff --git a/package.json b/package.json
index 3310ea5..127ee86 100644
--- a/package.json
+++ b/package.json
@@ -45,7 +45,7 @@
     "lint-staged": "17.0.8"
   },
   "dependencies": {
-    "eventsource": "^2.0.2",
+    "eventsource": "^4.0.0",
     "node-fetch": "^2",
     "rfc2047": "^4.0.1",
     "validator": "^13.7.0"