diff --git a/package.json b/package.json
index 519f595..fa5468e 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
   "dependencies": {
     "abort-controller": "^3.0.0",
     "any-signal": "^1.1.0",
-    "buffer": "^5.4.2",
+    "buffer": "^5.6.0",
     "err-code": "^2.0.0",
     "fs-extra": "^9.0.1",
     "is-electron": "^2.2.0",
@@ -49,9 +49,9 @@
   "devDependencies": {
     "aegir": "^22.0.0",
     "delay": "^4.3.0",
-    "it-all": "^1.0.1",
-    "it-drain": "^1.0.0",
-    "it-last": "^1.0.1",
+    "it-all": "^1.0.2",
+    "it-drain": "^1.0.1",
+    "it-last": "^1.0.2",
     "it-to-stream": "^0.1.1"
   },
   "contributors": [
diff --git a/src/supports.js b/src/supports.js
index 75d995f..3861448 100644
--- a/src/supports.js
+++ b/src/supports.js
@@ -1,5 +1,9 @@
 'use strict'
 
+const globalThis = require('./globalthis')
+
 module.exports = {
-  supportsFileReader: typeof self !== 'undefined' && 'FileReader' in self
+  supportsFileReader: typeof self !== 'undefined' && 'FileReader' in self,
+  supportsWebRTC: 'RTCPeerConnection' in globalThis &&
+  (typeof navigator !== 'undefined' && typeof navigator.mediaDevices !== 'undefined' && 'getUserMedia' in navigator.mediaDevices)
 }
diff --git a/test/supports.spec.js b/test/supports.spec.js
index 553f2c9..2cf178d 100644
--- a/test/supports.spec.js
+++ b/test/supports.spec.js
@@ -45,4 +45,44 @@ describe('supports', function () {
       this.skip()
     }
   })
+
+  it('supportsWebRTC should return false in node', function () {
+    if (env.isNode) {
+      expect(supports.supportsWebRTC).to.be.false()
+    } else {
+      this.skip()
+    }
+  })
+
+  it('supportsWebRTC should return true in browser', function () {
+    if (env.isBrowser) {
+      expect(supports.supportsWebRTC).to.be.true()
+    } else {
+      this.skip()
+    }
+  })
+
+  it('supportsWebRTC should return true in Web Worker', function () {
+    if (env.isWebWorker) {
+      expect(supports.supportsWebRTC).to.be.false()
+    } else {
+      this.skip()
+    }
+  })
+
+  it('supportsWebRTC should return false in Electron main', function () {
+    if (env.isElectron && !env.isElectronRenderer) {
+      expect(supports.supportsWebRTC).to.be.false()
+    } else {
+      this.skip()
+    }
+  })
+
+  it('supportsWebRTC should return true in Electron renderer', function () {
+    if (env.isElectronRenderer) {
+      expect(supports.supportsWebRTC).to.be.true()
+    } else {
+      this.skip()
+    }
+  })
 })