diff --git a/Environment-Variables.md b/Environment-Variables.md
index 723830b..a422e54 100644
--- a/Environment-Variables.md
+++ b/Environment-Variables.md
@@ -32,14 +32,16 @@ node server/server.js --host=127.0.0.1 --port=8080
 
 ## MariaDB Environment Variables
 
-| Environment Variable      | Description                                |
-| ------------------------- | ------------------------------------------ |
-| `UPTIME_KUMA_DB_TYPE`     | (2.0.0) Database Type `sqlite`, `mariadb`  |
-| `UPTIME_KUMA_DB_HOSTNAME` | (2.0.0) Database hostname. for mariadb     |
-| `UPTIME_KUMA_DB_PORT`     | (2.0.0) Database port. for mariadb, `3306` |
-| `UPTIME_KUMA_DB_NAME`     | (2.0.0) Database name                      |
-| `UPTIME_KUMA_DB_USERNAME` | (2.0.0) Database username                  |
-| `UPTIME_KUMA_DB_PASSWORD` | (2.0.0) Database password                  |
+| Environment Variable                  | Description                                                            |
+|---------------------------------------|------------------------------------------------------------------------|
+| `UPTIME_KUMA_DB_TYPE`                 | (2.0.0) Database Type `sqlite`, `mariadb`                              |
+| `UPTIME_KUMA_DB_HOSTNAME`             | (2.0.0) Database hostname. for mariadb                                 |
+| `UPTIME_KUMA_DB_PORT`                 | (2.0.0) Database port. for mariadb, `3306`                             |
+| `UPTIME_KUMA_DB_POOL_MAX_CONNECTIONS` | (2.1.0) Maximum number of concurrent pool connections, `10` by default |
+| `UPTIME_KUMA_DB_NAME`                 | (2.0.0) Database name                                                  |
+| `UPTIME_KUMA_DB_USERNAME`             | (2.0.0) Database username                                              |
+| `UPTIME_KUMA_DB_PASSWORD`             | (2.0.0) Database password                                              |
+
 
 
 ## For Development only