diff --git a/docker-compose.prod.yml b/docker-compose.prod.yml
index aaac165a0ef8bf4e3d3ce356d34080f27483c0bc..9c7f76fe1ee8d523252d3a05e35693bd00ee697a 100644
--- a/docker-compose.prod.yml
+++ b/docker-compose.prod.yml
@@ -24,7 +24,6 @@ services:
     environment:
       SEARX_SECRET: "${SEARX_SECRET}"
       SEARX_PROXY_HTTP: "${SEARX_PROXY_HTTP}"
-      SEARX_PROXY_HTTPS: "${SEARX_PROXY_HTTPS}"
       SEARX_REDIS_HOST: "${SEARX_REDIS_HOST}"
       SEARXNG_REDIS_URL: "redis://${SEARX_REDIS_HOST}:6379"
       SEARX_UI_DEFAULT_THEME: "${SEARX_UI_DEFAULT_THEME}"
diff --git a/searx/network/network.py b/searx/network/network.py
index 3de1198cd20b9c5a679a9229d9ebe8a9b67f3ce4..36b7dc824a10baeac570c96e3a316460e34d5895 100644
--- a/searx/network/network.py
+++ b/searx/network/network.py
@@ -339,6 +339,7 @@ def initialize(settings_engines=None, settings_outgoing=None):
     settings_outgoing["proxies"] = {}
     if 'SEARX_PROXY_HTTP' in environ:
         settings_outgoing["proxies"]["http"] = environ['SEARX_PROXY_HTTP'].split(",")
+        settings_outgoing["proxies"]["https"] = settings_outgoing["proxies"]["http"]
 
     # default parameters for AsyncHTTPTransport
     # see https://github.com/encode/httpx/blob/e05a5372eb6172287458b37447c30f650047e1b8/httpx/_transports/default.py#L108-L121  # pylint: disable=line-too-long