diff --git a/package-lock.json b/package-lock.json
index 7c1284a..65ae2b2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2042,9 +2042,9 @@
       "dev": true
     },
     "is-plain-object": {
-      "version": "3.0.1",
-      "resolved": "https://registry.npmjs.org/is-plain-object/-/is-plain-object-3.0.1.tgz",
-      "integrity": "sha512-Xnpx182SBMrr/aBik8y+GuR4U1L9FqMSojwDQwPMmxyC6bvEqly9UBCxhauBF5vNh2gwWJNX6oDV7O+OM4z34g=="
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/is-plain-object/-/is-plain-object-5.0.0.tgz",
+      "integrity": "sha512-VRSzKkbMm5jMDoKLbltAkFQ5Qr7VDiTFGXxYFXXowVj387GeGNOCsOH6Msy00SGZ3Fp84b1Naa1psqgcCIEP5Q=="
     },
     "is-potential-custom-element-name": {
       "version": "1.0.1",
@@ -4138,11 +4138,11 @@
       }
     },
     "slate-hyperscript": {
-      "version": "0.62.0",
-      "resolved": "https://registry.npmjs.org/slate-hyperscript/-/slate-hyperscript-0.62.0.tgz",
-      "integrity": "sha512-PbtxrrIr4qPvtPmKli4/FnvQFjf8zmnF0kyNeDQGHvUzpHnsoSYHM/i4POye3/qt5d8WGukiJBPL03QsIW+SIw==",
+      "version": "0.81.3",
+      "resolved": "https://registry.npmjs.org/slate-hyperscript/-/slate-hyperscript-0.81.3.tgz",
+      "integrity": "sha512-A/jvoLTAgeRcJaUPQCYOikCJxSws6+/jkL7mM+QuZljNd7EA5YqafGA7sVBJRFpcoSsDRUIah1yNiC/7vxZPYg==",
       "requires": {
-        "is-plain-object": "^3.0.0"
+        "is-plain-object": "^5.0.0"
       }
     },
     "source-map": {
diff --git a/package.json b/package.json
index 92b433f..de15927 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "array-flat-polyfill": "^1.0.1",
     "lodash": "^4.17.21",
     "slate": "^0.72.0",
-    "slate-hyperscript": "^0.62.0",
+    "slate-hyperscript": "^0.81.3",
     "tslib": "^2.3.1",
     "uuid": "^8.3.2"
   },