diff --git a/contrib/building.md b/contrib/building.md
index b42ee51adc..0cc80ffcf0 100644
--- a/contrib/building.md
+++ b/contrib/building.md
@@ -145,12 +145,13 @@ export PATH=<ccache location>/libexec:$PATH
 
 ## Cloning the repository
 
-To clone the RealmJS repository and install git submodules:
+To clone the RealmJS repository and install git submodules and dependencies.
 
 ```sh
 git clone https://github.com/realm/realm-js.git
 cd realm-js
 git submodule update --init --recursive
+npm install
 ```
 
 In order to improve the accuracy of `git blame` locally by ignoring commits in which the code was reformatted by an automated tool, run: `git config blame.ignoreRevsFile .gitignore-revs` from inside the repository.
diff --git a/package.json b/package.json
index 82d6d22db8..7170d351fb 100644
--- a/package.json
+++ b/package.json
@@ -10,8 +10,7 @@
     "lint": "wireit",
     "lint:fix": "wireit",
     "lint:cpp": "find src packages/realm/bindgen/src -name '*.cpp' -or -name '*.h' -or -name '*.hpp' | xargs clang-format --dry-run --Werror",
-    "lint:cpp:fix": "find src packages/realm/bindgen/src -name '*.cpp' -or -name '*.h' -or -name '*.hpp' | xargs clang-format -i",
-    "postinstall": "git submodule update --init --recursive"
+    "lint:cpp:fix": "find src packages/realm/bindgen/src -name '*.cpp' -or -name '*.h' -or -name '*.hpp' | xargs clang-format -i"
   },
   "wireit": {
     "build": {