diff --git a/Dockerfile b/Image.Dockerfile
similarity index 96%
rename from Dockerfile
rename to Image.Dockerfile
index 6e7e08e..b4bdfcb 100644
--- a/Dockerfile
+++ b/Image.Dockerfile
@@ -1,11 +1,11 @@
 FROM debian:stable-slim
 
 #ARG ARCH=amd64
-ARG NRF_CONNECT_TAG=v2.4.2
+ARG NRF_CONNECT_TAG=v2.3.0
 # Should be for selected NRF_CONNECT_TAG
-ARG ZEPHYR_NEEDED_TAG=0.16.0
+ARG ZEPHYR_NEEDED_TAG=0.15.2
 # For new versions - xz
-ARG ZEPHYR_ARCHIVE_EXTENSION=xz
+ARG ZEPHYR_ARCHIVE_EXTENSION=gz
 
 # For entrypoint file
 ENV ZEPHYR_TAG=$ZEPHYR_NEEDED_TAG