diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5bb4968..bbe44dc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [2.0.3] - 2019-12-03
+
+### Changed
+
+* Downgraded TypeScript version to 3.6.3.
+
 ## [2.0.2] - 2019-12-03
 
 ### Changed
@@ -30,5 +36,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 * Updated npm dependencies.
 * Updated README with API documentation and better usage example.
 
+[2.0.2]: https://github.com/jurebajt/rxjs-observable-store/compare/v2.0.2...v2.0.3
 [2.0.2]: https://github.com/jurebajt/rxjs-observable-store/compare/v2.0.1...v2.0.2
 [2.0.1]: https://github.com/jurebajt/rxjs-observable-store/compare/v2.0.0...v2.0.1
diff --git a/package-lock.json b/package-lock.json
index cedb9da..6c328a0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4599,9 +4599,9 @@
       }
     },
     "ts-toolbelt": {
-      "version": "4.12.12",
-      "resolved": "https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.12.12.tgz",
-      "integrity": "sha512-5Fvhfv1YRFYiM594wqO4fFJJRxP7MdfvO/wBEhLN6kCG6cUSjqInKeiHEVsdLC2i2KF3cP+XqXxzPTcps+0mDw=="
+      "version": "4.12.13",
+      "resolved": "https://registry.npmjs.org/ts-toolbelt/-/ts-toolbelt-4.12.13.tgz",
+      "integrity": "sha512-tnMgohN582PAv9u5xX8tsbdTzawRwyhvrg2r1qOgiAUOXB8ABGwYQeOh0qfE43wKF0ygvbBrM/CTZMED6ow5ZQ=="
     },
     "tslib": {
       "version": "1.10.0",
@@ -4634,9 +4634,9 @@
       }
     },
     "typescript": {
-      "version": "3.7.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.7.2.tgz",
-      "integrity": "sha512-ml7V7JfiN2Xwvcer+XAf2csGO1bPBdRbFCkYBczNZggrBZ9c7G3riSUeJmqEU5uOtXNPMhE3n+R4FA/3YOAWOQ==",
+      "version": "3.6.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.6.3.tgz",
+      "integrity": "sha512-N7bceJL1CtRQ2RiG0AQME13ksR7DiuQh/QehubYcghzv20tnh+MQnQIuJddTmsbqYj+dztchykemz0zFzlvdQw==",
       "dev": true
     },
     "uglify-js": {
diff --git a/package.json b/package.json
index 54ce8a3..1b4b9e6 100644
--- a/package.json
+++ b/package.json
@@ -41,7 +41,7 @@
     "testRegex": "/src/.*\\.spec\\.ts$"
   },
   "dependencies": {
-    "ts-toolbelt": "4.12.12"
+    "ts-toolbelt": "4.12.13"
   },
   "peerDependencies": {
     "rxjs": "6.x"
@@ -52,6 +52,6 @@
     "rimraf": "3.0.0",
     "rxjs": "6.5.3",
     "ts-jest": "24.2.0",
-    "typescript": "3.7.2"
+    "typescript": "3.6.3"
   }
 }