diff --git a/package-lock.json b/package-lock.json
index 0e53788..b749d32 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "1.0.0",
       "license": "Apache-2.0",
       "dependencies": {
-        "@lhncbc/ucum-lhc": "5.0.4",
+        "@lhncbc/ucum-lhc": "7.1.0",
         "csv-parse": "5.5.6",
         "fastify": "4.28.1",
         "fastify-graceful-shutdown": "4.0.1",
@@ -1311,9 +1311,9 @@
       }
     },
     "node_modules/@lhncbc/ucum-lhc": {
-      "version": "5.0.4",
-      "resolved": "https://registry.npmjs.org/@lhncbc/ucum-lhc/-/ucum-lhc-5.0.4.tgz",
-      "integrity": "sha512-khuV9GV51DF80b0wJmhZTR5Bf23fhS6SSIWnyGT9X+Uvn0FsHFl2LKViQ2TTOuvwagUOUSq8/0SyoE2ZDGwrAA==",
+      "version": "7.1.0",
+      "resolved": "https://registry.npmjs.org/@lhncbc/ucum-lhc/-/ucum-lhc-7.1.0.tgz",
+      "integrity": "sha512-ji1HehnNVjoXObP8xcrqmll7076ealA3zLwBFBlfq4vDl5Zm9mexiJw6D6J6++9dJyx9egzs9ygdEdDk/JUE3w==",
       "license": "SEE LICENSE IN LICENSE.md",
       "dependencies": {
         "coffeescript": "^2.7.0",
@@ -1322,7 +1322,6 @@
         "escape-html": "^1.0.3",
         "is-integer": "^1.0.6",
         "jsonfile": "^2.2.3",
-        "stream": "0.0.2",
         "stream-transform": "^0.1.1",
         "string-to-stream": "^1.1.0",
         "xmldoc": "^0.4.0"
@@ -2461,11 +2460,6 @@
       "integrity": "sha512-yXsZyXJfAqzWk1WKryr0Wl0MN2D47xodPvEEwlVePBnhU5E7raevLQR+E6b9JAD3GfL/7MbAL9ZtWQQPcLx7wA==",
       "dev": true
     },
-    "node_modules/emitter-component": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/emitter-component/-/emitter-component-1.1.1.tgz",
-      "integrity": "sha512-G+mpdiAySMuB7kesVRLuyvYRqDmshB7ReKEVuyBPkzQlmiDiLrt7hHHIy4Aff552bgknVN7B2/d3lzhGO5dvpQ=="
-    },
     "node_modules/emittery": {
       "version": "0.13.1",
       "resolved": "https://registry.npmjs.org/emittery/-/emittery-0.13.1.tgz",
@@ -5499,14 +5493,6 @@
         "node": ">=8"
       }
     },
-    "node_modules/stream": {
-      "version": "0.0.2",
-      "resolved": "https://registry.npmjs.org/stream/-/stream-0.0.2.tgz",
-      "integrity": "sha512-gCq3NDI2P35B2n6t76YJuOp7d6cN/C7Rt0577l91wllh0sY9ZBuw9KaSGqH/b0hzn3CWWJbpbW0W0WvQ1H/Q7g==",
-      "dependencies": {
-        "emitter-component": "^1.1.1"
-      }
-    },
     "node_modules/stream-transform": {
       "version": "0.1.2",
       "resolved": "https://registry.npmjs.org/stream-transform/-/stream-transform-0.1.2.tgz",
diff --git a/package.json b/package.json
index cf3d847..8df3ffe 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
   "description": "Harmonizes LOINC codes and units.",
   "main": "src/server.js",
   "dependencies": {
-    "@lhncbc/ucum-lhc": "5.0.4",
+    "@lhncbc/ucum-lhc": "7.1.0",
     "csv-parse": "5.5.6",
     "fastify": "4.28.1",
     "fastify-graceful-shutdown": "4.0.1",