diff --git a/package.json b/package.json
index 8ee0d94..8c100aa 100644
--- a/package.json
+++ b/package.json
@@ -76,7 +76,7 @@
     "url": "https://github.com/aureooms/js-codec-base16/issues"
   },
   "dependencies": {
-    "@aureooms/js-codec": "^3.0.0",
+    "@aureooms/js-codec": "^4.0.0",
     "@aureooms/js-itertools": "^5.0.0"
   },
   "devDependencies": {
diff --git a/yarn.lock b/yarn.lock
index 0c44ebf..03ec33e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,12 +2,12 @@
 # yarn lockfile v1
 
 
-"@aureooms/js-codec@^3.0.0":
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/@aureooms/js-codec/-/js-codec-3.0.0.tgz#4103849a5f46ec7058ee3cccaf164d6c36bd04fa"
-  integrity sha512-m1BkZPIJ3G6kaxiy3JILi+0wM2Avexb4JoBoF427K4Bghkw4zTl/vyRJVr4cf9emO19s+K3ZJVFnIsn8PK1JVw==
+"@aureooms/js-codec@^4.0.0":
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/@aureooms/js-codec/-/js-codec-4.0.0.tgz#909f0c07ced6a3bb604ce4cfd6a4ee6a2870067e"
+  integrity sha512-CnxP4uSwvqWDNQTbihBVc3Y3VEzBHaxu5zV+jkwVleyxuLOhYH+5joZl2NIHmCkizsapZHKLnDnw3EJP2sQmwg==
   dependencies:
-    "@aureooms/js-error" "^4.0.0"
+    "@aureooms/js-error" "^5.0.2"
 
 "@aureooms/js-collections-deque@^5.0.0":
   version "5.0.0"
@@ -16,12 +16,7 @@
   dependencies:
     "@aureooms/js-error" "^5.0.1"
 
-"@aureooms/js-error@^4.0.0":
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/@aureooms/js-error/-/js-error-4.0.1.tgz#be2740b3f31a337e0828930c9b70d38113b4dd77"
-  integrity sha512-zsgs6wmnRsKljlusewYiBaFBM/hIJp43b7OwE9ybpLEL4wfXjGP17cJTTAY8gpzALVFwEA5/flxIK0I6gJJLHQ==
-
-"@aureooms/js-error@^5.0.1":
+"@aureooms/js-error@^5.0.1", "@aureooms/js-error@^5.0.2":
   version "5.0.2"
   resolved "https://registry.yarnpkg.com/@aureooms/js-error/-/js-error-5.0.2.tgz#dc2ad2fc2b10365581c32c28222daccc5c3c9600"
   integrity sha512-HLO95kmZ1nJV5qo8Xq7czHVskFGPkM3l60JFgdTnpvCH6P6lkyWDBplaDB9gI5cPvcRIZDs1HeAHhAlHR/jBxw==