diff --git a/lib/flow-typed/web-crypto-common.js b/lib/flow-typed/web-crypto-common.js
--- a/lib/flow-typed/web-crypto-common.js
+++ b/lib/flow-typed/web-crypto-common.js
@@ -20,16 +20,7 @@
   | 'wrapKey'
   | 'unwrapKey';
 
-declare type CryptoKey = {
-  +algorithm:
-    | SubtleCrypto$AesKeyGenParams
-    | SubtleCrypto$RsaHashedKeyGenParams
-    | SubtleCrypto$EcKeyGenParams
-    | SubtleCrypto$HmacKeyGenParams,
-  +extractable: boolean,
-  +type: CryptoKey$Type,
-  +usages: $ReadOnlyArray<CryptoKey$Usages>,
-};
+declare type CryptoKey = SubtleCrypto$JsonWebKey;
 
 type SubtleCrypto$KeyFormatWithoutJwk = 'pkcs8' | 'raw' | 'spki';
 type SubtleCrypto$KeyFormat = 'jwk' | SubtleCrypto$KeyFormatWithoutJwk;