diff --git a/.env_sample b/.env_sample
deleted file mode 100644
index 1ef3619..0000000
--- a/.env_sample
+++ /dev/null
@@ -1,5 +0,0 @@
-DEBUG=false           # debug logging
-TIMEOUT=2             # http requests timeout
-NDIGITS=3             # digits after floating point or after zeroes
-COINAPI_KEYS=["key"]  # coinapi keys list
-TELEGRAM_TOKEN=       # telegram bot token
diff --git a/config_sample.yaml b/config_sample.yaml
new file mode 100644
index 0000000..d4ae8e7
--- /dev/null
+++ b/config_sample.yaml
@@ -0,0 +1,7 @@
+debug: false           # debug logging
+timeout: 2             # http requests timeout
+ndigits: 3             # digits after floating point or after zeroes
+coinapi_keys:
+  - key
+  - key2               # coinapi keys list
+telegram_token:        # telegram bot token