diff --git a/package-lock.json b/package-lock.json
index 1e8ae42..4015ba6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "0.1.0",
       "license": "MIT",
       "dependencies": {
-        "harper.js": "2.7.0"
+        "harper.js": "2.10.0"
       },
       "bin": {
         "weirsmith": "src/cli.js"
@@ -40,9 +40,9 @@
       "license": "MIT"
     },
     "node_modules/harper.js": {
-      "version": "2.7.0",
-      "resolved": "https://registry.npmjs.org/harper.js/-/harper.js-2.7.0.tgz",
-      "integrity": "sha512-INDnUMNJvQzv5Zv9lhgGuIRYNIpDvOXcieCbo5ED/dwn8V/02zVW5kKvU6jSJJHq1MpY0VDyg+5RjE7z5D+FeA==",
+      "version": "2.10.0",
+      "resolved": "https://registry.npmjs.org/harper.js/-/harper.js-2.10.0.tgz",
+      "integrity": "sha512-s6BDuqtRbX8M/5exH1G5M7VzAuv6l0TagbRxMY37OsrT/1kWFjWmqHydWrkYFqTUW+fFhu4Hj2yUxvChp862Pg==",
       "license": "Apache-2.0",
       "dependencies": {
         "fflate": "^0.8.2"
diff --git a/package.json b/package.json
index 88909d6..f48cd8e 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
     "build:web": "node tools/build-web.mjs"
   },
   "dependencies": {
-    "harper.js": "2.7.0"
+    "harper.js": "2.10.0"
   },
   "devDependencies": {
     "dictionary-en": "4.0.0",