diff --git a/.env b/.env
index 7aaaf1a..095793f 100644
--- a/.env
+++ b/.env
@@ -10,7 +10,7 @@ MONGO_DB_PORT=27017
 MONGO_DB_VERSION=4.4
 
 # IoT Agent Ultralight Variables
-ULTRALIGHT_VERSION=2.4.2-distroless
+ULTRALIGHT_VERSION=3.1.0-distroless
 IOTA_NORTH_PORT=4041
 IOTA_SOUTH_PORT=7896