diff --git a/package.json b/package.json
index 65bc8c2..b4875ae 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
   "dependencies": {
     "@aureooms/js-compare": "^1.4.5",
     "@aureooms/js-error": "^5.0.0",
-    "@aureooms/js-itertools": "^4.0.0"
+    "@aureooms/js-itertools": "^5.0.0"
   },
   "devDependencies": {
     "@babel/cli": "7.13.10",
diff --git a/yarn.lock b/yarn.lock
index 69766bc..cbe8fed 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,35 +2,35 @@
 # yarn lockfile v1
 
 
-"@aureooms/js-collections-deque@^4.0.0":
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/@aureooms/js-collections-deque/-/js-collections-deque-4.0.0.tgz#cb6ff3070f4413023622db817da261f91e42aef0"
-  integrity sha512-+dI0PSkshl0vKmeyfzWM5Xtfopu4XYIrlqKKq3emjyuCi1DCO9SaPIgKblMDjl9WttmJhTYsunNyPYula5woAw==
+"@aureooms/js-collections-deque@^6.0.1":
+  version "6.0.1"
+  resolved "https://registry.yarnpkg.com/@aureooms/js-collections-deque/-/js-collections-deque-6.0.1.tgz#ba89379ac826539047f768e1fb84ed4d2c1f829e"
+  integrity sha512-GUhEIF6tmnxsGvUaPSR/7HbZETn04yHOcrt7swo5ftKRz+Pb/N9iuvGimBwmCTLDkJ60OZG2TWfoYPVNA2lutQ==
   dependencies:
-    "@aureooms/js-error" "^4.0.0"
+    "@aureooms/js-error" "^5.0.2"
 
 "@aureooms/js-compare@^1.4.5":
   version "1.4.5"
   resolved "https://registry.yarnpkg.com/@aureooms/js-compare/-/js-compare-1.4.5.tgz#8531ba35bf2ecb0ec6aca307674276e8dd65c81c"
   integrity sha1-hTG6Nb8uyw7GrKMHZ0J26N1lyBw=
 
-"@aureooms/js-error@^4.0.0":
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/@aureooms/js-error/-/js-error-4.0.0.tgz#cea0a145f5290f443911b3d1890d7254a18eeb9b"
-  integrity sha512-omwmz82cPxqRnorZ8tqeIcPj1QcJnCsMiVYcwOh/QfUXhJ+DmiBPgWOm5WWAQvQzYVKe0/k7+s2ie+UoRJagjA==
-
 "@aureooms/js-error@^5.0.0":
   version "5.0.1"
   resolved "https://registry.yarnpkg.com/@aureooms/js-error/-/js-error-5.0.1.tgz#474e2f1dd7189f97df770b5cc6f1bda536de262d"
   integrity sha512-BbbpKpp4W8L2x9vL4bas+JtuAe4PMojzTpf21puHPw5p3S+lgKd8SfS9y40pVHi/b3SrQrdpmsaEKjL4xviilQ==
 
-"@aureooms/js-itertools@^4.0.0":
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/@aureooms/js-itertools/-/js-itertools-4.0.0.tgz#2f7247b4a89202606bb54a731753590625b4b185"
-  integrity sha512-QhCT+RDUbWPL7h3RA7LcXdC1IQdR3Bfl0Re0ClDxem7DUnRbHuL4Nlwgo3UoqaRBE8OI4RpBw+hXVVqVg14J9Q==
+"@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==
+
+"@aureooms/js-itertools@^5.0.0":
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/@aureooms/js-itertools/-/js-itertools-5.0.1.tgz#73af47b0a710073730fccde6c57431a9178d1bea"
+  integrity sha512-EBmA0EiY49MSu7M6eCZvUyEhV79bvIQDg/LL3bfUG8fxhL4IeBLbgYc41a4/LunD5mLFG8ZQna/Z/oUjr4fUuQ==
   dependencies:
-    "@aureooms/js-collections-deque" "^4.0.0"
-    "@aureooms/js-error" "^4.0.0"
+    "@aureooms/js-collections-deque" "^6.0.1"
+    "@aureooms/js-error" "^5.0.2"
 
 "@babel/cli@7.13.10":
   version "7.13.10"