diff --git a/config/runtime.exs b/config/runtime.exs
index 47b4e331..5608f942 100644
--- a/config/runtime.exs
+++ b/config/runtime.exs
@@ -20,7 +20,7 @@ ip = ConfigReader.read_ip("FJ_IP") || Application.fetch_env!(:fishjam, :ip)
 port = ConfigReader.read_port("FJ_PORT") || Application.fetch_env!(:fishjam, :port)
 
 host =
-  case System.get_env("FJ_HOST") do
+  case ConfigReader.read_string("FJ_HOST") do
     nil -> "#{:inet.ntoa(ip)}:#{port}"
     other -> other
   end
@@ -31,7 +31,7 @@ sip_used? = Fishjam.Component.SIP in components_used
 config :fishjam,
   jwt_max_age: 24 * 3600,
   media_files_path:
-    System.get_env("FJ_RESOURCES_BASE_PATH", "fishjam_resources") |> Path.expand(),
+    ConfigReader.read_string("FJ_RESOURCES_BASE_PATH", "fishjam_resources") |> Path.expand(),
   address: host,
   metrics_ip: ConfigReader.read_ip("FJ_METRICS_IP") || {127, 0, 0, 1},
   metrics_port: ConfigReader.read_port("FJ_METRICS_PORT") || 9568,
@@ -42,7 +42,7 @@ config :fishjam,
   s3_config: ConfigReader.read_s3_config(),
   git_commit: ConfigReader.read_git_commit()
 
-case System.get_env("FJ_SERVER_API_TOKEN") do
+case ConfigReader.read_string("FJ_SERVER_API_TOKEN") do
   nil when prod? == true ->
     raise """
     environment variable FJ_SERVER_API_TOKEN is missing.
@@ -61,7 +61,7 @@ external_uri = URI.parse("//" <> host)
 
 config :fishjam, FishjamWeb.Endpoint,
   secret_key_base:
-    System.get_env("FJ_SECRET_KEY_BASE") || Base.encode64(:crypto.strong_rand_bytes(48)),
+    ConfigReader.read_string("FJ_SECRET_KEY_BASE") || Base.encode64(:crypto.strong_rand_bytes(48)),
   url: [
     host: external_uri.host,
     port: external_uri.port || 443,
diff --git a/lib/jellyfish/config_reader.ex b/lib/jellyfish/config_reader.ex
index f22be44f..f4a23671 100644
--- a/lib/jellyfish/config_reader.ex
+++ b/lib/jellyfish/config_reader.ex
@@ -246,6 +246,10 @@ defmodule Fishjam.ConfigReader do
     get_env("FJ_GIT_COMMIT", "dev")
   end
 
+  def read_string(string, default \\ nil) do
+    get_env(string, default)
+  end
+
   defp do_read_nodes_list_config(node_name_value, cookie, mode) do
     nodes_value = get_env("FJ_DIST_NODES", "")
 
diff --git a/mix.exs b/mix.exs
index d28181eb..d9a3372c 100644
--- a/mix.exs
+++ b/mix.exs
@@ -4,7 +4,7 @@ defmodule Fishjam.MixProject do
   def project do
     [
       app: :fishjam,
-      version: "0.6.0",
+      version: "0.6.1",
       elixir: "~> 1.14",
       elixirc_paths: elixirc_paths(Mix.env()),
       start_permanent: Mix.env() == :prod,
diff --git a/openapi.yaml b/openapi.yaml
index 9ad53ddf..c67ac562 100644
--- a/openapi.yaml
+++ b/openapi.yaml
@@ -835,7 +835,7 @@ info:
     name: Apache 2.0
     url: https://www.apache.org/licenses/LICENSE-2.0
   title: Fishjam Media Server
-  version: 0.6.0
+  version: 0.6.1
 openapi: 3.0.0
 paths:
   /health: