diff --git a/src/common/Collection.js b/src/common/Collection.ts
similarity index 100%
rename from src/common/Collection.js
rename to src/common/Collection.ts
diff --git a/src/common/Model.js b/src/common/Model.ts
similarity index 100%
rename from src/common/Model.js
rename to src/common/Model.ts
diff --git a/src/common/View.js b/src/common/View.ts
similarity index 100%
rename from src/common/View.js
rename to src/common/View.ts
diff --git a/src/common/index.js b/src/common/index.ts
similarity index 100%
rename from src/common/index.js
rename to src/common/index.ts