diff --git a/.env-example b/.env-example
index d67637a..5f190c6 100644
--- a/.env-example
+++ b/.env-example
@@ -59,6 +59,7 @@ PHONE_CARRIER=""
 PHONE_NUMBER=""
 PLAY_SOUND=""
 PROXY_ADDRESS=""
+PROXY_PROTOCOL=""
 PROXY_PORT=""
 PUSHBULLET=""
 PUSHOVER_TOKEN=""
diff --git a/README.md b/README.md
index 8442575..02728ad 100644
--- a/README.md
+++ b/README.md
@@ -98,6 +98,7 @@ environment variables are **optional**._
 | `PAGE_SLEEP_MIN` | Minimum sleep time between queries of the same product page | In milliseconds, default: `5000` |
 | `PAGE_SLEEP_MAX` | Maximum sleep time between queries of the same product page | In milliseconds, default: `10000` |
 | `PAGE_TIMEOUT` | Navigation Timeout in milliseconds | `0` for infinite, default: `30000` |
+| `PROXY_PROTOCOL` | protocol of proxy server, such as `socks5` | default: `http` |
 | `PROXY_ADDRESS` | IP Address or fqdn of proxy server |
 | `PROXY_PORT` | TCP Port number on which the proxy is listening for connections | Default: `80` |
 | `SCREENSHOT` | Capture screenshot of page if a card is found | Default: `true` |
diff --git a/src/config.ts b/src/config.ts
index b9c1a22..1c87174 100644
--- a/src/config.ts
+++ b/src/config.ts
@@ -291,7 +291,8 @@ const page = {
 
 const proxy = {
 	address: envOrString(process.env.PROXY_ADDRESS),
-	port: envOrNumber(process.env.PROXY_PORT, 80)
+	port: envOrNumber(process.env.PROXY_PORT, 80),
+	protocol: envOrString(process.env.PROXY_PROTOCOL, 'http')
 };
 
 // Check for deprecated configuration values
diff --git a/src/index.ts b/src/index.ts
index e0a5011..573f370 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -44,7 +44,7 @@ async function main() {
 	// Add the address of the proxy server if defined
 	if (config.proxy.address) {
 		args.push(
-			`--proxy-server=http://${config.proxy.address}:${config.proxy.port}`
+			`--proxy-server=${config.proxy.protocol}://${config.proxy.address}:${config.proxy.port}`
 		);
 	}