diff --git a/.changeset/hot-spiders-grin.md b/.changeset/hot-spiders-grin.md
new file mode 100644
index 00000000..e55aad4d
--- /dev/null
+++ b/.changeset/hot-spiders-grin.md
@@ -0,0 +1,5 @@
+---
+'@salesforce/mrt-utilities': minor
+---
+
+Update peer dependency
diff --git a/packages/mrt-utilities/package.json b/packages/mrt-utilities/package.json
index 8e77baf8..29f1638e 100644
--- a/packages/mrt-utilities/package.json
+++ b/packages/mrt-utilities/package.json
@@ -124,7 +124,7 @@
     "typescript-eslint": "catalog:"
   },
   "peerDependencies": {
-    "express": "5.1.0"
+    "express": "^4.0.0 || ^5.0.0"
   },
   "engines": {
     "node": ">=22.16.0"