diff --git a/package-lock.json b/package-lock.json
index 959cdca69..7157f83b7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
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       "license": "Apache-2.0",
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         "cloudevents": "^8.0.2",
         "express": "^4.21.2",
@@ -593,20 +593,22 @@
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+      "license": "MIT",
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         "@types/body-parser": "*",
-        "@types/express-serve-static-core": "^5.0.0",
+        "@types/express-serve-static-core": "^4.17.33",
         "@types/qs": "*",
         "@types/serve-static": "*"
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-      "resolved": "https://registry.npmjs.org/@types/express-serve-static-core/-/express-serve-static-core-5.0.2.tgz",
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+      "resolved": "https://registry.npmjs.org/@types/express-serve-static-core/-/express-serve-static-core-4.19.6.tgz",
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@@ -671,14 +673,16 @@
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+      "resolved": "https://registry.npmjs.org/@types/qs/-/qs-6.9.18.tgz",
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+      "license": "MIT"
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       "resolved": "https://registry.npmjs.org/@types/range-parser/-/range-parser-1.2.7.tgz",
-      "integrity": "sha512-hKormJbkJqzQGhziax5PItDUTMAM9uE2XXQmM37dyd4hVM+5aVl7oVxMVUiVQn2oCQFN/LKCZdvSM0pFRqbSmQ=="
+      "integrity": "sha512-hKormJbkJqzQGhziax5PItDUTMAM9uE2XXQmM37dyd4hVM+5aVl7oVxMVUiVQn2oCQFN/LKCZdvSM0pFRqbSmQ==",
+      "license": "MIT"
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     "node_modules/@types/semver": {
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@@ -6064,20 +6068,20 @@
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-      "resolved": "https://registry.npmjs.org/@types/express/-/express-5.0.0.tgz",
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       "requires": {
         "@types/body-parser": "*",
-        "@types/express-serve-static-core": "^5.0.0",
+        "@types/express-serve-static-core": "^4.17.33",
         "@types/qs": "*",
         "@types/serve-static": "*"
       }
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     "@types/express-serve-static-core": {
-      "version": "5.0.2",
-      "resolved": "https://registry.npmjs.org/@types/express-serve-static-core/-/express-serve-static-core-5.0.2.tgz",
-      "integrity": "sha512-vluaspfvWEtE4vcSDlKRNer52DvOGrB2xv6diXy6UKyKW0lqZiWHGNApSyxOv+8DE5Z27IzVvE7hNkxg7EXIcg==",
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+      "resolved": "https://registry.npmjs.org/@types/express-serve-static-core/-/express-serve-static-core-4.19.6.tgz",
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@@ -6142,9 +6146,9 @@
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+      "resolved": "https://registry.npmjs.org/@types/qs/-/qs-6.9.18.tgz",
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diff --git a/package.json b/package.json
index 8b0bbb3c8..607008dd7 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
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   "dependencies": {
-    "@types/express": "^5.0.0",
+    "@types/express": "^4.17.21",
     "body-parser": "^1.18.3",
     "cloudevents": "^8.0.2",
     "express": "^4.21.2",