diff --git a/package.json b/package.json
index 495f898..74b73c2 100644
--- a/package.json
+++ b/package.json
@@ -29,21 +29,21 @@
     "exec:test": "mocha --timeout 10000 dist/test/*.spec.js"
   },
   "devDependencies": {
-    "@types/chai": "4.2.18",
+    "@types/chai": "4.3.5",
     "@types/mocha": "8.2.2",
     "chai": "4.3.4",
     "lint-staged": "10.5.4",
     "mocha": "8.4.0",
     "post-commit": "0.0.1",
     "pre-commit": "1.2.2",
-    "prettier": "2.3.1",
+    "prettier": "2.8.8",
     "rimraf": "3.0.2",
     "ts-node": "9.1.1",
     "tslint": "5.20.1",
-    "typescript": "4.3.2"
+    "typescript": "4.9.5"
   },
   "dependencies": {
-    "@types/node": "14.17.3",
+    "@types/node": "14.18.55",
     "agh.sprintf": "0.0.11",
     "antlr4ts": "^0.5.0-alpha.1",
     "scanf": "^1.0.2"
diff --git a/yarn.lock b/yarn.lock
index 1eb6551..cf7b054 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -23,20 +23,20 @@
     chalk "^2.0.0"
     js-tokens "^4.0.0"
 
-"@types/chai@4.2.18":
-  version "4.2.18"
-  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.2.18.tgz#0c8e298dbff8205e2266606c1ea5fbdba29b46e4"
-  integrity sha512-rS27+EkB/RE1Iz3u0XtVL5q36MGDWbgYe7zWiodyKNUnthxY0rukK5V36eiUCtCisB7NN8zKYH6DO2M37qxFEQ==
+"@types/chai@4.3.5":
+  version "4.3.5"
+  resolved "https://registry.yarnpkg.com/@types/chai/-/chai-4.3.5.tgz#ae69bcbb1bebb68c4ac0b11e9d8ed04526b3562b"
+  integrity sha512-mEo1sAde+UCE6b2hxn332f1g1E8WfYRu6p5SvTKr2ZKC1f7gFJXk4h5PyGP9Dt6gCaG8y8XhwnXWC6Iy2cmBng==
 
 "@types/mocha@8.2.2":
   version "8.2.2"
   resolved "https://registry.yarnpkg.com/@types/mocha/-/mocha-8.2.2.tgz#91daa226eb8c2ff261e6a8cbf8c7304641e095e0"
   integrity sha512-Lwh0lzzqT5Pqh6z61P3c3P5nm6fzQK/MMHl9UKeneAeInVflBSz1O2EkX6gM6xfJd7FBXBY5purtLx7fUiZ7Hw==
 
-"@types/node@14.17.3":
-  version "14.17.3"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-14.17.3.tgz#6d327abaa4be34a74e421ed6409a0ae2f47f4c3d"
-  integrity sha512-e6ZowgGJmTuXa3GyaPbTGxX17tnThl2aSSizrFthQ7m9uLGZBXiGhgE55cjRZTF5kjZvYn9EOPOMljdjwbflxw==
+"@types/node@14.18.55":
+  version "14.18.55"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-14.18.55.tgz#c60ad83c7d87c2d933cc4c1cb7d54d98ae50e460"
+  integrity sha512-PiNZnJDie6lgSWfjWYcQ8KWrEHp0bGv1WgnQAUuaao/HpUBKNX+HXubScoMRdLXBuovbte0djGtsxiWScvlQUQ==
 
 "@types/parse-json@^4.0.0":
   version "4.0.0"
@@ -984,10 +984,10 @@ pre-commit@1.2.2:
     spawn-sync "^1.0.15"
     which "1.2.x"
 
-prettier@2.3.1:
-  version "2.3.1"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.3.1.tgz#76903c3f8c4449bc9ac597acefa24dc5ad4cbea6"
-  integrity sha512-p+vNbgpLjif/+D+DwAZAbndtRrR0md0MwfmOVN9N+2RgyACMT+7tfaRnT+WDPkqnuVwleyuBIG2XBxKDme3hPA==
+prettier@2.8.8:
+  version "2.8.8"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.8.8.tgz#e8c5d7e98a4305ffe3de2e1fc4aca1a71c28b1da"
+  integrity sha512-tdN8qQGvNjw4CHbY+XXk0JgCXn9QiF21a55rBe5LJAU+kDyC4WQn4+awm2Xfk2lQMk5fKup9XgzTZtGkjBdP9Q==
 
 process-nextick-args@~2.0.0:
   version "2.0.1"
@@ -1332,10 +1332,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@4.3.2:
-  version "4.3.2"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.3.2.tgz#399ab18aac45802d6f2498de5054fcbbe716a805"
-  integrity sha512-zZ4hShnmnoVnAHpVHWpTcxdv7dWP60S2FsydQLV8V5PbS3FifjWFFRiHSWpDJahly88PRyV5teTSLoq4eG7mKw==
+typescript@4.9.5:
+  version "4.9.5"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-4.9.5.tgz#095979f9bcc0d09da324d58d03ce8f8374cbe65a"
+  integrity sha512-1FXk9E2Hm+QzZQ7z+McJiHL4NW1F2EzMu9Nq9i3zAaGqibafqYwCVU6WyWAuyQRRzOlxou8xZSyXLEN8oKj24g==
 
 util-deprecate@~1.0.1:
   version "1.0.2"