diff --git a/protocol/package.json b/protocol/package.json
index 2d16fda5033f..1684e8dda5b5 100644
--- a/protocol/package.json
+++ b/protocol/package.json
@@ -27,7 +27,7 @@
     "iced-logger": "^0.0.6",
     "iced-runtime": "^1.0.2",
     "iced-utils": "^0.1.22",
-    "json5": "0.5.1",
+    "json5": "1.0.2",
     "minimist": "^1.1.0",
     "prettier": "1.19.1"
   }
diff --git a/protocol/yarn.lock b/protocol/yarn.lock
index 3d7cfb715630..801133864681 100644
--- a/protocol/yarn.lock
+++ b/protocol/yarn.lock
@@ -190,10 +190,12 @@ jison@^0.4.17:
     lex-parser "~0.1.3"
     nomnom "1.5.2"
 
-json5@0.5.1:
-  version "0.5.1"
-  resolved "https://registry.yarnpkg.com/json5/-/json5-0.5.1.tgz#1eade7acc012034ad84e2396767ead9fa5495821"
-  integrity sha1-Hq3nrMASA0rYTiOWdn6tn6VJWCE=
+json5@1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/json5/-/json5-1.0.2.tgz#63d98d60f21b313b77c4d6da18bfa69d80e1d593"
+  integrity sha512-g1MWMLBiz8FKi1e4w0UyVL3w+iJceWAFBAaBnnGKOpNa5f8TLktkbre1+s6oICydWAm+HRUGTmI+//xv2hvXYA==
+  dependencies:
+    minimist "^1.2.0"
 
 jsonlint@1.6.0:
   version "1.6.0"