diff --git a/lib/moduleEncoding.js b/lib/moduleEncoding.js
index 11665f5..c26c566 100644
--- a/lib/moduleEncoding.js
+++ b/lib/moduleEncoding.js
@@ -1682,13 +1682,14 @@ async function createProtectedModule(module, certificate) {
  * @param {String|Buffer} snapshot.hash Snapshot hash. Can be a buffer or hex-encoded string.
  * @param {String|Number} snapshot.updatedAt Snapshot creation time. Can be a string in a format
  *        supported by `Date.parse()` or a numeric timestamp.
+ * @param {Number} [maxSize=MAX_ENV_SIZE] Maximum allowed size of the resulting module.
  * @returns {Promise<Buffer>} Asset data.
  */
-async function encodeEnvVarsAsset(vars, snapshot = undefined) {
+async function encodeEnvVarsAsset(vars, snapshot = undefined, maxSize = MAX_ENV_SIZE) {
 	if (!vars || typeof vars !== 'object') {
 		throw new Error('Expected variable values to be an object');
 	}
-	if (JSON.stringify(vars).length > MAX_ENV_SIZE) {
+	if (JSON.stringify(vars).length > maxSize) {
 		throw new Error('Asset exceeds the maximum size');
 	}
 	for (const [name, val] of Object.entries(vars)) {
@@ -1743,9 +1744,10 @@ async function encodeEnvVarsAsset(vars, snapshot = undefined) {
  * @param {String|Buffer} snapshot.hash Snapshot hash. Can be a buffer or hex-encoded string.
  * @param {String|Number} snapshot.updatedAt Snapshot creation time. Can be a string in a format
  *        supported by `Date.parse()` or a numeric timestamp.
+ * @param {Number} [maxSize=MAX_ENV_SIZE] Maximum allowed size of the resulting module.
  * @returns {Promise<Buffer>} Module binary.
  */
-async function createEnvVarsAssetModule(vars, snapshot = undefined) {
+async function createEnvVarsAssetModule(vars, snapshot = undefined, maxSize = MAX_ENV_SIZE) {
 	let assetData;
 	if (Buffer.isBuffer(vars)) {
 		if (snapshot) {
@@ -1753,7 +1755,7 @@ async function createEnvVarsAssetModule(vars, snapshot = undefined) {
 		}
 		assetData = vars;
 	} else {
-		assetData = await encodeEnvVarsAsset(vars, snapshot);
+		assetData = await encodeEnvVarsAsset(vars, snapshot, maxSize);
 	}
 
 	const assetModule = await createAssetModule(assetData, ENV_ASSET_NAME, {
diff --git a/package-lock.json b/package-lock.json
index 17f5f1a..3a45580 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "binary-version-reader",
-  "version": "4.0.0",
+  "version": "4.0.1-rc.1",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "binary-version-reader",
-      "version": "4.0.0",
+      "version": "4.0.1-rc.1",
       "license": "Apache-2.0",
       "dependencies": {
         "@particle/device-os-protobuf": "^2.7.0",
diff --git a/package.json b/package.json
index 9bff643..f41c7d0 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "binary-version-reader",
-  "version": "4.0.0",
+  "version": "4.0.1-rc.1",
   "main": "main.js",
   "license": "Apache-2.0",
   "engines": {