diff --git a/.env.example b/.env.example
index c724506..01f1c29 100644
--- a/.env.example
+++ b/.env.example
@@ -430,6 +430,8 @@ GOST_PROXY_URL=
 
 # External upstream proxy (REQUIRED - asked during wizard if gost is selected)
 # Examples: socks5://user:pass@proxy.com:1080, http://user:pass@proxy.com:8080
+# IMPORTANT: For HTTP proxies use http://, NOT https://
+# The protocol refers to proxy type, not connection security.
 GOST_UPSTREAM_PROXY=
 
 # Internal services bypass list (prevents internal Docker traffic from going through proxy)
diff --git a/scripts/04_wizard.sh b/scripts/04_wizard.sh
index 92339e0..755a9e7 100755
--- a/scripts/04_wizard.sh
+++ b/scripts/04_wizard.sh
@@ -215,7 +215,7 @@ if [ $gost_selected -eq 1 ]; then
     EXISTING_UPSTREAM=$(read_env_var "GOST_UPSTREAM_PROXY")
 
     GOST_UPSTREAM_INPUT=$(wt_input "Gost Upstream Proxy" \
-        "Enter your external proxy URL for geo-bypass.\n\nExamples:\n  socks5://user:pass@proxy.com:1080\n  http://user:pass@proxy.com:8080\n\nThis proxy should be located outside restricted regions." \
+        "Enter your external proxy URL for geo-bypass.\n\nExamples:\n  socks5://user:pass@proxy.com:1080\n  http://user:pass@proxy.com:8080\n\nIMPORTANT: For HTTP proxies use http://, NOT https://.\nThe protocol refers to proxy type, not connection security.\n\nThis proxy should be located outside restricted regions." \
         "$EXISTING_UPSTREAM") || true
 
     if [ -n "$GOST_UPSTREAM_INPUT" ]; then