diff --git a/package.json b/package.json
index 075d821ec9a..29624b30b0a 100644
--- a/package.json
+++ b/package.json
@@ -31,6 +31,7 @@
     "keywords": [
         "matrix-org"
     ],
+    "type": "module",
     "main": "./src/index.ts",
     "browser": "./src/browser-index.ts",
     "matrix_src_main": "./src/index.ts",
diff --git a/scripts/release/pre-release.sh b/scripts/release/pre-release.sh
index 19319fb6105..6b47ef180ff 100755
--- a/scripts/release/pre-release.sh
+++ b/scripts/release/pre-release.sh
@@ -12,6 +12,3 @@ do
         jq ".$i = .matrix_lib_$i" package.json > package.json.new && mv package.json.new package.json && yarn prettier --write package.json
     fi
 done
-
-# Ensure that "type": "module" is present
-jq '.type = "module"' package.json > package.json.new && mv package.json.new package.json && yarn prettier --write package.json
diff --git a/scripts/switch_package_to_release.cjs b/scripts/switch_package_to_release.cjs
index 353840d4d92..6d857a4070a 100755
--- a/scripts/switch_package_to_release.cjs
+++ b/scripts/switch_package_to_release.cjs
@@ -12,10 +12,6 @@ async function main() {
         }
     }
 
-    // matrix-js-sdk is built into ECMAScript modules. Make sure we declare it as such.
-    // See https://nodejs.org/api/packages.html#type.
-    pkgJson["type"] = "module";
-
     await fsProm.writeFile(PKGJSON, JSON.stringify(pkgJson, null, 2));
 }