diff --git a/package-lock.json b/package-lock.json
index 3fc143de..86f0eef8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -27,6 +27,7 @@
         "@types/rdf-ext": "^1.3.8",
         "@types/rdf-js": "^3.0.3",
         "@types/rdfjs__dataset": "^1.0.4",
+        "chokidar": "^3.4.3",
         "gts": "^3.0.3",
         "ts-node-dev": "^1.1.1",
         "typescript": "^4.1.2"
@@ -2619,14 +2620,14 @@
       "dev": true
     },
     "node_modules/chokidar": {
-      "version": "3.5.1",
-      "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-3.5.1.tgz",
-      "integrity": "sha512-9+s+Od+W0VJJzawDma/gvBNQqkTiqYTWLuZoyAsivsI4AaWTCzHG06/TMjsf1cYe9Cb97UCEhjz7HvnPk2p/tw==",
+      "version": "3.4.3",
+      "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-3.4.3.tgz",
+      "integrity": "sha512-DtM3g7juCXQxFVSNPNByEC2+NImtBuxQQvWlHunpJIS5Ocr0lG306cC7FCi7cEA0fzmybPUIl4txBIobk1gGOQ==",
       "dev": true,
       "dependencies": {
         "anymatch": "~3.1.1",
         "braces": "~3.0.2",
-        "fsevents": "~2.3.1",
+        "fsevents": "~2.1.2",
         "glob-parent": "~5.1.0",
         "is-binary-path": "~2.1.0",
         "is-glob": "~4.0.1",
@@ -2637,7 +2638,7 @@
         "node": ">= 8.10.0"
       },
       "optionalDependencies": {
-        "fsevents": "~2.3.1"
+        "fsevents": "~2.1.2"
       }
     },
     "node_modules/ci-info": {
@@ -4025,9 +4026,10 @@
       "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8="
     },
     "node_modules/fsevents": {
-      "version": "2.3.1",
-      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.1.tgz",
-      "integrity": "sha512-YR47Eg4hChJGAB1O3yEAOkGO+rlzutoICGqGo9EZ4lKWokzZRSyIW1QmTzqjtw8MJdj9srP869CuWw/hyzSiBw==",
+      "version": "2.1.3",
+      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.1.3.tgz",
+      "integrity": "sha512-Auw9a4AxqWpa9GUfj370BMPzzyncfBABW8Mab7BGWBYDj4Isgq+cDKtx0i6u9jcX9pQDnswsaaOTgTmA5pEjuQ==",
+      "deprecated": "\"Please update to latest v2.3 or v2.2\"",
       "dev": true,
       "hasInstallScript": true,
       "optional": true,
@@ -9559,14 +9561,14 @@
       "dev": true
     },
     "chokidar": {
-      "version": "3.5.1",
-      "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-3.5.1.tgz",
-      "integrity": "sha512-9+s+Od+W0VJJzawDma/gvBNQqkTiqYTWLuZoyAsivsI4AaWTCzHG06/TMjsf1cYe9Cb97UCEhjz7HvnPk2p/tw==",
+      "version": "3.4.3",
+      "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-3.4.3.tgz",
+      "integrity": "sha512-DtM3g7juCXQxFVSNPNByEC2+NImtBuxQQvWlHunpJIS5Ocr0lG306cC7FCi7cEA0fzmybPUIl4txBIobk1gGOQ==",
       "dev": true,
       "requires": {
         "anymatch": "~3.1.1",
         "braces": "~3.0.2",
-        "fsevents": "~2.3.1",
+        "fsevents": "~2.1.2",
         "glob-parent": "~5.1.0",
         "is-binary-path": "~2.1.0",
         "is-glob": "~4.0.1",
@@ -10626,9 +10628,9 @@
       "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8="
     },
     "fsevents": {
-      "version": "2.3.1",
-      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.3.1.tgz",
-      "integrity": "sha512-YR47Eg4hChJGAB1O3yEAOkGO+rlzutoICGqGo9EZ4lKWokzZRSyIW1QmTzqjtw8MJdj9srP869CuWw/hyzSiBw==",
+      "version": "2.1.3",
+      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-2.1.3.tgz",
+      "integrity": "sha512-Auw9a4AxqWpa9GUfj370BMPzzyncfBABW8Mab7BGWBYDj4Isgq+cDKtx0i6u9jcX9pQDnswsaaOTgTmA5pEjuQ==",
       "dev": true,
       "optional": true
     },
diff --git a/package.json b/package.json
index bf4e6ce0..acdfa46d 100644
--- a/package.json
+++ b/package.json
@@ -38,6 +38,7 @@
     "@types/rdf-ext": "^1.3.8",
     "@types/rdf-js": "^3.0.3",
     "@types/rdfjs__dataset": "^1.0.4",
+    "chokidar": "^3.4.3",
     "gts": "^3.0.3",
     "ts-node-dev": "^1.1.1",
     "typescript": "^4.1.2"