diff --git a/package-lock.json b/package-lock.json
index 64e1bbb..35a8231 100644
--- a/package-lock.json
+++ b/package-lock.json
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+      "version": "7.5.5",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.5.5.tgz",
+      "integrity": "sha512-BAkMFcAzl8as1G/hArkxOxq3G7pjUqQ3gzYbLL0/5zNkph70e+lCoxBGnm6AW1+/aiNeV4fnKqZ8m4GZewmH2w==",
+      "dev": true
     },
     "xml-name-validator": {
       "version": "3.0.0",
@@ -3289,24 +2995,24 @@
       "dev": true
     },
     "y-protocols": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/y-protocols/-/y-protocols-1.0.2.tgz",
-      "integrity": "sha512-V6ZAmokdogW52+VsIg/YC0R6CHWgG8/hjO3rYL10hAzeT5j464kDiRki31O+GzTj+dMgNYZNd6IDP9X35FLXrw==",
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/y-protocols/-/y-protocols-1.0.5.tgz",
+      "integrity": "sha512-Wil92b7cGk712lRHDqS4T90IczF6RkcvCwAD0A2OPg+adKmOe+nOiT/N2hvpQIWS3zfjmtL4CPaH5sIW1Hkm/A==",
       "dev": true,
       "requires": {
-        "lib0": "^0.2.35"
+        "lib0": "^0.2.42"
       }
     },
     "y-webrtc": {
-      "version": "10.1.8",
-      "resolved": "https://registry.npmjs.org/y-webrtc/-/y-webrtc-10.1.8.tgz",
-      "integrity": "sha512-eeKU8QWtT5ahPLv+NCrf6ax8MXXmKYEtFO/eh0Svl8D3VDZ/3H8w9NLWVoL1GEwv5HNH0gu0p78n8v76Ttziuw==",
+      "version": "10.2.0",
+      "resolved": "https://registry.npmjs.org/y-webrtc/-/y-webrtc-10.2.0.tgz",
+      "integrity": "sha512-YhHXJx46zc8En8Jpy5FUpAksAAndTV0dXbEKxJw/Zb8+Y6xVGaeB4+x44k0xo5i+SgZ00OjlXAQXgkJQesLc4Q==",
       "dev": true,
       "requires": {
-        "lib0": "^0.2.34",
-        "simple-peer": "^9.9.3",
+        "lib0": "^0.2.42",
+        "simple-peer": "^9.11.0",
         "ws": "^7.2.0",
-        "y-protocols": "^1.0.1"
+        "y-protocols": "^1.0.5"
       }
     },
     "y18n": {
@@ -3344,12 +3050,12 @@
       }
     },
     "yjs": {
-      "version": "13.5.5",
-      "resolved": "https://registry.npmjs.org/yjs/-/yjs-13.5.5.tgz",
-      "integrity": "sha512-sbE4G+bSP0jw71aJ9Hqi5UxOTy8JGkObIaCSpY6krRoNqssPCWq05rqV9PQcuMqcrHD3twzko92fVaF1S3id/Q==",
+      "version": "13.5.17",
+      "resolved": "https://registry.npmjs.org/yjs/-/yjs-13.5.17.tgz",
+      "integrity": "sha512-EeroWadB+/SlGuNwXaIjo75QlTlCjst3U/dLqhTkqwIXeCGl/nRTbQev+iYgWZVskD1eTCvaDc2FdrGdpKq32A==",
       "dev": true,
       "requires": {
-        "lib0": "^0.2.38"
+        "lib0": "^0.2.42"
       }
     }
   }
diff --git a/package.json b/package.json
index 549da6e..baf2a9c 100644
--- a/package.json
+++ b/package.json
@@ -43,20 +43,20 @@
     "codemirror": "^5.52.2"
   },
   "dependencies": {
-    "lib0": "^0.2.41"
+    "lib0": "^0.2.42"
   },
   "devDependencies": {
     "@rollup/plugin-commonjs": "^17.1.0",
     "@rollup/plugin-node-resolve": "^11.2.1",
     "@types/codemirror": "0.0.91",
-    "codemirror": "^5.61.0",
+    "codemirror": "^5.63.3",
     "concurrently": "^5.3.0",
     "http-server": "^0.12.3",
-    "jsdom": "^16.5.3",
-    "rollup": "^2.47.0",
+    "jsdom": "^16.7.0",
+    "rollup": "^2.59.0",
     "standard": "^14.3.4",
-    "typescript": "^3.9.9",
-    "y-webrtc": "^10.1.8",
-    "yjs": "^13.5.5"
+    "typescript": "^3.9.10",
+    "y-webrtc": "^10.2.0",
+    "yjs": "^13.5.17"
   }
 }
diff --git a/rollup.config.js b/rollup.config.js
index b7199a2..20fff78 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -20,15 +20,7 @@ export default [{
     name: 'y-codemirror',
     file: 'dist/y-codemirror.cjs',
     format: 'cjs',
-    sourcemap: true,
-    paths: path => {
-      if (/^lib0\//.test(path)) {
-        return `lib0/dist${path.slice(4, -3)}.cjs`
-      } else if (/^y-protocols\//.test(path)) {
-        return `y-protocols/dist${path.slice(11, -3)}.cjs`
-      }
-      return path
-    }
+    sourcemap: true
   }]
 }, {
   input: './demo/codemirror.js',
@@ -66,12 +58,7 @@ export default [{
     name: 'test',
     file: 'dist/test.cjs',
     format: 'cjs',
-    sourcemap: true,
-    paths: path => {
-      if (/^lib0\//.test(path)) {
-        return `lib0/dist/${path.slice(5, -3)}.cjs`
-      }
-    }
+    sourcemap: true
   },
   plugins: [
     debugResolve,
diff --git a/src/y-codemirror.js b/src/y-codemirror.js
index 0f55831..eaa151c 100644
--- a/src/y-codemirror.js
+++ b/src/y-codemirror.js
@@ -2,13 +2,13 @@
  * @module bindings/textarea
  */
 
-import { createMutex } from 'lib0/mutex.js'
-import * as math from 'lib0/math.js'
+import { createMutex } from 'lib0/mutex'
+import * as math from 'lib0/math'
 import * as Y from 'yjs'
-import * as func from 'lib0/function.js'
-import * as eventloop from 'lib0/eventloop.js'
-import { Observable } from 'lib0/observable.js'
-import * as diff from 'lib0/diff.js'
+import * as func from 'lib0/function'
+import * as eventloop from 'lib0/eventloop'
+import { Observable } from 'lib0/observable'
+import * as diff from 'lib0/diff'
 import CodeMirror from 'codemirror'
 
 export const cmOrigin = 'y-codemirror'
diff --git a/test/index.js b/test/index.js
index ba7c366..d5661b3 100644
--- a/test/index.js
+++ b/test/index.js
@@ -1,9 +1,9 @@
 
 import * as codemirror from './y-codemirror.test.js'
 
-import { runTests } from 'lib0/testing.js'
-import { isBrowser, isNode } from 'lib0/environment.js'
-import * as log from 'lib0/logging.js'
+import { runTests } from 'lib0/testing'
+import { isBrowser, isNode } from 'lib0/environment'
+import * as log from 'lib0/logging'
 
 if (isBrowser) {
   log.createVConsole(document.body)
diff --git a/test/y-codemirror.test.js b/test/y-codemirror.test.js
index 4617edd..2245d9a 100644
--- a/test/y-codemirror.test.js
+++ b/test/y-codemirror.test.js
@@ -1,7 +1,7 @@
 
-import * as t from 'lib0/testing.js'
-import * as prng from 'lib0/prng.js'
-import * as math from 'lib0/math.js'
+import * as t from 'lib0/testing'
+import * as prng from 'lib0/prng'
+import * as math from 'lib0/math'
 import * as Y from 'yjs' // eslint-disable-line
 import { applyRandomTests } from 'yjs/tests/testHelper.js'