diff --git a/package-lock.json b/package-lock.json
index 37e6c09..812bbd2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,7 +12,7 @@
         "@lhncbc/ucum-lhc": "5.0.4",
         "csv-parse": "5.5.6",
         "fastify": "4.28.1",
-        "fastify-graceful-shutdown": "3.5.3",
+        "fastify-graceful-shutdown": "4.0.1",
         "fastify-metrics": "11.0.0",
         "http-status-codes": "2.3.0",
         "pino": "9.4.0"
@@ -3521,15 +3521,15 @@
       }
     },
     "node_modules/fastify-graceful-shutdown": {
-      "version": "3.5.3",
-      "resolved": "https://registry.npmjs.org/fastify-graceful-shutdown/-/fastify-graceful-shutdown-3.5.3.tgz",
-      "integrity": "sha512-Qb7QfvHsQA8GZ0eop430pZ/BQ4EIHnec5wqUkpbfdE3S0PXI5Kbt3Nqtc/z8PBjrsX4y1xOuNesYUFfWaTd8IA==",
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/fastify-graceful-shutdown/-/fastify-graceful-shutdown-4.0.1.tgz",
+      "integrity": "sha512-OHevWwNC6AVaHAQcDfoDhrn3IN7mP6NrzsiHIBltvbiiER/0gnReBI74D3X8HSTkvWxJHtWIg9Ixj5kzBCetbQ==",
+      "license": "ISC",
       "dependencies": {
-        "fastify-plugin": "^4.5.1",
-        "fastparallel": "^2.4.1"
+        "fastify-plugin": "^4.5.1"
       },
       "engines": {
-        "node": ">=16.0.0"
+        "node": ">=20.0.0"
       }
     },
     "node_modules/fastify-metrics": {
@@ -3567,15 +3567,6 @@
         "node": ">=10"
       }
     },
-    "node_modules/fastparallel": {
-      "version": "2.4.1",
-      "resolved": "https://registry.npmjs.org/fastparallel/-/fastparallel-2.4.1.tgz",
-      "integrity": "sha512-qUmhxPgNHmvRjZKBFUNI0oZuuH9OlSIOXmJ98lhKPxMZZ7zS/Fi0wRHOihDSz0R1YiIOjxzOY4bq65YTcdBi2Q==",
-      "dependencies": {
-        "reusify": "^1.0.4",
-        "xtend": "^4.0.2"
-      }
-    },
     "node_modules/fastq": {
       "version": "1.17.1",
       "resolved": "https://registry.npmjs.org/fastq/-/fastq-1.17.1.tgz",
@@ -7306,14 +7297,6 @@
         "sax": "~1.1.1"
       }
     },
-    "node_modules/xtend": {
-      "version": "4.0.2",
-      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
-      "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==",
-      "engines": {
-        "node": ">=0.4"
-      }
-    },
     "node_modules/y18n": {
       "version": "5.0.8",
       "resolved": "https://registry.npmjs.org/y18n/-/y18n-5.0.8.tgz",
diff --git a/package.json b/package.json
index 8f0f90c..3b629c0 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
     "@lhncbc/ucum-lhc": "5.0.4",
     "csv-parse": "5.5.6",
     "fastify": "4.28.1",
-    "fastify-graceful-shutdown": "3.5.3",
+    "fastify-graceful-shutdown": "4.0.1",
     "fastify-metrics": "11.0.0",
     "http-status-codes": "2.3.0",
     "pino": "9.4.0"