diff --git a/apps/block_scout_web/config/dev.exs b/apps/block_scout_web/config/dev.exs
index 8feafba7cb..ae05490a86 100644
--- a/apps/block_scout_web/config/dev.exs
+++ b/apps/block_scout_web/config/dev.exs
@@ -11,8 +11,8 @@ config :block_scout_web, BlockScoutWeb.Endpoint,
   https: [
     port: 4001,
     cipher_suite: :strong,
-    certfile: "priv/cert/selfsigned.pem",
-    keyfile: "priv/cert/selfsigned_key.pem"
+    certfile: System.get_env("CERTFILE") || "priv/cert/selfsigned.pem",
+    keyfile: System.get_env("KEYFILE") || "priv/cert/selfsigned_key.pem"
   ],
   debug_errors: true,
   code_reloader: true,