diff --git a/package-lock.json b/package-lock.json
index 0d86404..76ff6b9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -30,6 +30,74 @@
         "js-tokens": "^4.0.0"
       }
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+    "@rollup/plugin-commonjs": {
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+      "resolved": "https://registry.npmjs.org/@rollup/plugin-commonjs/-/plugin-commonjs-17.0.0.tgz",
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+      "dev": true,
+      "requires": {
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+        "commondir": "^1.0.1",
+        "estree-walker": "^2.0.1",
+        "glob": "^7.1.6",
+        "is-reference": "^1.2.1",
+        "magic-string": "^0.25.7",
+        "resolve": "^1.17.0"
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+          "resolved": "https://registry.npmjs.org/estree-walker/-/estree-walker-2.0.2.tgz",
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+          "dev": true
+        }
+      }
+    },
+    "@rollup/plugin-node-resolve": {
+      "version": "11.0.1",
+      "resolved": "https://registry.npmjs.org/@rollup/plugin-node-resolve/-/plugin-node-resolve-11.0.1.tgz",
+      "integrity": "sha512-ltlsj/4Bhwwhb+Nb5xCz/6vieuEj2/BAkkqVIKmZwC7pIdl8srmgmglE4S0jFlZa32K4qvdQ6NHdmpRKD/LwoQ==",
+      "dev": true,
+      "requires": {
+        "@rollup/pluginutils": "^3.1.0",
+        "@types/resolve": "1.17.1",
+        "builtin-modules": "^3.1.0",
+        "deepmerge": "^4.2.2",
+        "is-module": "^1.0.0",
+        "resolve": "^1.19.0"
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+          "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.19.0.tgz",
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+          "dev": true,
+          "requires": {
+            "is-core-module": "^2.1.0",
+            "path-parse": "^1.0.6"
+          }
+        }
+      }
+    },
+    "@rollup/pluginutils": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/@rollup/pluginutils/-/pluginutils-3.1.0.tgz",
+      "integrity": "sha512-GksZ6pr6TpIjHm8h9lSQ8pi8BE9VeubNT0OMJ3B5uZJ8pz73NPiqOtCog/x2/QzM1ENChPKxMDhiQuRHsqc+lg==",
+      "dev": true,
+      "requires": {
+        "@types/estree": "0.0.39",
+        "estree-walker": "^1.0.1",
+        "picomatch": "^2.2.2"
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+          "resolved": "https://registry.npmjs.org/@types/estree/-/estree-0.0.39.tgz",
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+          "dev": true
+        }
+      }
+    },
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       "version": "0.0.91",
       "resolved": "https://registry.npmjs.org/@types/codemirror/-/codemirror-0.0.91.tgz",
@@ -51,6 +119,21 @@
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+    "@types/node": {
+      "version": "14.14.16",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-14.14.16.tgz",
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+    "@types/resolve": {
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+      "resolved": "https://registry.npmjs.org/@types/resolve/-/resolve-1.17.1.tgz",
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+      "dev": true,
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@@ -212,6 +295,12 @@
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+      "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.5.1.tgz",
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+    "buffer": {
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+      "resolved": "https://registry.npmjs.org/buffer/-/buffer-6.0.3.tgz",
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+      "dev": true,
+      "requires": {
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+        "ieee754": "^1.2.1"
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+    "builtin-modules": {
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+      "resolved": "https://registry.npmjs.org/builtin-modules/-/builtin-modules-3.2.0.tgz",
+      "integrity": "sha512-lGzLKcioL90C7wMczpkY0n/oART3MbBa8R9OFGE1rJxoVI86u4WAGfEk8Wjv10eKSyTHVGkSo3bvBylCEtk7LA==",
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@@ -316,9 +421,9 @@
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+      "version": "5.59.0",
+      "resolved": "https://registry.npmjs.org/codemirror/-/codemirror-5.59.0.tgz",
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@@ -351,6 +456,12 @@
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+      "resolved": "https://registry.npmjs.org/commondir/-/commondir-1.0.1.tgz",
+      "integrity": "sha1-3dgA2gxmEnOTzKWVDqloo6rxJTs=",
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@@ -487,6 +598,12 @@
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+      "resolved": "https://registry.npmjs.org/deepmerge/-/deepmerge-4.2.2.tgz",
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+      "resolved": "https://registry.npmjs.org/err-code/-/err-code-2.0.3.tgz",
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+      "resolved": "https://registry.npmjs.org/estree-walker/-/estree-walker-1.0.1.tgz",
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-      "integrity": "sha1-u81AyEUaftTvXDc7gWmkCd0dEdk=",
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@@ -1312,6 +1441,12 @@
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+      "resolved": "https://registry.npmjs.org/ieee754/-/ieee754-1.2.1.tgz",
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+    "is-core-module": {
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+      "resolved": "https://registry.npmjs.org/is-core-module/-/is-core-module-2.2.0.tgz",
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@@ -1506,12 +1650,27 @@
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+      "resolved": "https://registry.npmjs.org/is-module/-/is-module-1.0.0.tgz",
+      "integrity": "sha1-Mlj7afeMFNW4FdZkM2tM/7ZEFZE=",
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+      "resolved": "https://registry.npmjs.org/is-reference/-/is-reference-1.2.1.tgz",
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@@ -1751,6 +1910,15 @@
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+      "resolved": "https://registry.npmjs.org/magic-string/-/magic-string-0.25.7.tgz",
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+      "requires": {
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+      "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.2.2.tgz",
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@@ -2565,16 +2739,29 @@
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-        "queue-microtask": "^1.1.0",
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+      "version": "9.9.3",
+      "resolved": "https://registry.npmjs.org/simple-peer/-/simple-peer-9.9.3.tgz",
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+      "dev": true,
+      "requires": {
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+        "debug": "^4.2.0",
+        "err-code": "^2.0.3",
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+          "dev": true,
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@@ -2595,6 +2782,12 @@
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@@ -3081,24 +3274,24 @@
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-      "resolved": "https://registry.npmjs.org/y-protocols/-/y-protocols-1.0.0.tgz",
-      "integrity": "sha512-L/GB+ryTmrrE0ISLIsNmgXl8lmt+CF7wG9Gm6jQf1JQYKZuzX3+Tbz3b7ov/quXwguM5zcVlJ0zxG29SgQD5Ww==",
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/y-protocols/-/y-protocols-1.0.1.tgz",
+      "integrity": "sha512-QP3fCM7c2gGfUi2nqf8gspyO4VW23zv3kNqPNdD3wNxMbuNQenMyoDVZYEo12jzR4RQ3aaDfPK62Sf31SVOmfg==",
       "dev": true,
       "requires": {
         "lib0": "^0.2.28"
       }
     },
     "y-webrtc": {
-      "version": "10.1.6",
-      "resolved": "https://registry.npmjs.org/y-webrtc/-/y-webrtc-10.1.6.tgz",
-      "integrity": "sha512-b3pTIv9LcPuMb4nbDT3/kkgmcuQoTrBmaPbBqPH1LJMzI8HwYnMK8p5r0fBQJBI0YRor+i8BT15Evv1nQBP0zg==",
+      "version": "10.1.7",
+      "resolved": "https://registry.npmjs.org/y-webrtc/-/y-webrtc-10.1.7.tgz",
+      "integrity": "sha512-GzgH6O2s73A1ndGcapIyVeRkjGL0suUAe4dhN+ZIjKIrQK0CjKG7a7cxK5raiKSW1I41XiRN/eOtsjbD/bu5fg==",
       "dev": true,
       "requires": {
-        "lib0": "^0.2.32",
-        "simple-peer": "^9.7.2",
+        "lib0": "^0.2.34",
+        "simple-peer": "^9.9.3",
         "ws": "^7.2.0",
-        "y-protocols": "^1.0.0"
+        "y-protocols": "^1.0.1"
       }
     },
     "y18n": {
@@ -3136,12 +3329,12 @@
       }
     },
     "yjs": {
-      "version": "13.3.2",
-      "resolved": "https://registry.npmjs.org/yjs/-/yjs-13.3.2.tgz",
-      "integrity": "sha512-f4R9wK4Pn0FDrNR++mjaW4mbC/qsFHzZaDicva1yN3IMrlUuwQ6qt3HEUc4DMiAkjETGB07LyhxbQ9YgNenk8Q==",
+      "version": "13.4.9",
+      "resolved": "https://registry.npmjs.org/yjs/-/yjs-13.4.9.tgz",
+      "integrity": "sha512-TJ6C7PPyiVP9HnSx40hm47FfacXcvMNy/70msnhXaebIFDDsVX6AOFTzLktCB6vY/SoCfpkIKO/hzhulfDTsMA==",
       "dev": true,
       "requires": {
-        "lib0": "^0.2.32"
+        "lib0": "^0.2.33"
       }
     }
   }
diff --git a/package.json b/package.json
index d38f6d4..1af44b9 100644
--- a/package.json
+++ b/package.json
@@ -43,18 +43,20 @@
     "codemirror": "^5.52.2"
   },
   "dependencies": {
-    "lib0": "^0.2.33"
+    "lib0": "^0.2.35"
   },
   "devDependencies": {
+    "@rollup/plugin-commonjs": "^17.0.0",
+    "@rollup/plugin-node-resolve": "^11.0.1",
     "@types/codemirror": "0.0.91",
-    "codemirror": "^5.57.0",
+    "codemirror": "^5.59.0",
     "concurrently": "^5.3.0",
     "http-server": "^0.12.3",
     "jsdom": "^16.4.0",
-    "rollup": "^2.26.10",
+    "rollup": "^2.35.1",
     "standard": "^14.3.4",
     "typescript": "^3.9.7",
-    "y-webrtc": "^10.1.6",
-    "yjs": "^13.3.2"
+    "y-webrtc": "^10.1.7",
+    "yjs": "^13.4.9"
   }
 }