diff --git a/Dockerfile--alpine.tmpl b/Dockerfile--alpine.tmpl
index f56501b..05ce66d 100644
--- a/Dockerfile--alpine.tmpl
+++ b/Dockerfile--alpine.tmpl
@@ -1,16 +1,16 @@
 ARG PYTHON_VERSION 
 
 # --------------------------------------------- base1
-FROM python:${PYTHON_VERSION}-alpine as base1
+FROM python:${PYTHON_VERSION}-alpine AS base1
 
 # --------------------------------------------- base1
-FROM base1 as base2
+FROM base1 AS base2
 
 RUN apk add python3-dev build-base musl-dev linux-headers
 RUN apk add git 
 
 # --------------------------------------------- final
-FROM base2 as final
+FROM base2 AS final
 
 RUN apk add mc
 RUN apk add bash
diff --git a/Dockerfile--altlinux_10.tmpl b/Dockerfile--altlinux_10.tmpl
index b8818b9..4aaf991 100644
--- a/Dockerfile--altlinux_10.tmpl
+++ b/Dockerfile--altlinux_10.tmpl
@@ -1,7 +1,7 @@
 ARG PYTHON_VERSION 
 
 # --------------------------------------------- base1
-FROM alt:p10 as base1
+FROM alt:p10 AS base1
 
 RUN apt-get update
 RUN apt-get install -y sudo curl ca-certificates
@@ -16,20 +16,20 @@ EXPOSE 22
 RUN ssh-keygen -A
 
 # --------------------------------------------- dev_tools
-FROM base1 as base1_with_dev_tools
+FROM base1 AS base1_with_dev_tools
 
 RUN apt-get update
 RUN apt-get install -y git
 
 # --------------------------------------------- base2_with_python-3
-FROM base1_with_dev_tools as base2_with_python-3
+FROM base1_with_dev_tools AS base2_with_python-3
 RUN apt-get install -y python3
 RUN apt-get install -y python3-dev
 
 ENV PYTHON_VERSION=3
 
 # --------------------------------------------- final
-FROM base2_with_python-${PYTHON_VERSION} as final
+FROM base2_with_python-${PYTHON_VERSION} AS final
 
 RUN adduser test -G wheel
 
diff --git a/Dockerfile--altlinux_11.tmpl b/Dockerfile--altlinux_11.tmpl
index da6b032..44f29b7 100644
--- a/Dockerfile--altlinux_11.tmpl
+++ b/Dockerfile--altlinux_11.tmpl
@@ -1,7 +1,7 @@
 ARG PYTHON_VERSION 
 
 # --------------------------------------------- base1
-FROM alt:p11 as base1
+FROM alt:p11 AS base1
 
 RUN apt-get update
 RUN apt-get install -y sudo curl ca-certificates
@@ -19,20 +19,20 @@ EXPOSE 22
 RUN ssh-keygen -A
 
 # --------------------------------------------- dev_tools
-FROM base1 as base1_with_dev_tools
+FROM base1 AS base1_with_dev_tools
 
 RUN apt-get update
 RUN apt-get install -y git
 
 # --------------------------------------------- base2_with_python-3
-FROM base1_with_dev_tools as base2_with_python-3
+FROM base1_with_dev_tools AS base2_with_python-3
 RUN apt-get install -y python3
 RUN apt-get install -y python3-dev
 
 ENV PYTHON_VERSION=3
 
 # --------------------------------------------- final
-FROM base2_with_python-${PYTHON_VERSION} as final
+FROM base2_with_python-${PYTHON_VERSION} AS final
 
 RUN adduser test -G wheel
 
diff --git a/Dockerfile--ubuntu_24_04.tmpl b/Dockerfile--ubuntu_24_04.tmpl
index 975b317..5cd3aa3 100644
--- a/Dockerfile--ubuntu_24_04.tmpl
+++ b/Dockerfile--ubuntu_24_04.tmpl
@@ -1,7 +1,7 @@
 ARG PYTHON_VERSION 
 
 # --------------------------------------------- base1
-FROM ubuntu:24.04 as base1
+FROM ubuntu:24.04 AS base1
 
 RUN apt update
 RUN apt install -y sudo curl ca-certificates
@@ -15,12 +15,12 @@ RUN apt install -y git
 # RUN apt install -y mc
 
 # --------------------------------------------- base2_with_python-3
-FROM base1 as base2_with_python-3
+FROM base1 AS base2_with_python-3
 RUN apt install -y python3 python3-dev python3-venv
 ENV PYTHON_VERSION=3
 
 # --------------------------------------------- final
-FROM base2_with_python-${PYTHON_VERSION} as final
+FROM base2_with_python-${PYTHON_VERSION} AS final
 
 EXPOSE 22