diff --git a/.github/workflows/package-verification.yml b/.github/workflows/package-verification.yml
index bc00815..494a499 100644
--- a/.github/workflows/package-verification.yml
+++ b/.github/workflows/package-verification.yml
@@ -75,6 +75,12 @@ jobs:
       fail-fast: false
       matrix:
         include:
+          - platform: "alpine"
+            python: "3.7.3"
+          - platform: "alpine"
+            python: "3.7.4"
+          - platform: "alpine"
+            python: "3.7.5"
           - platform: "alpine"
             python: "3.7"
           - platform: "alpine"
@@ -93,6 +99,8 @@ jobs:
             python: "3.13"
           - platform: "alpine"
             python: "3.14"
+          - platform: "astralinux_1_7"
+            python: "3"
 
     env:
       BASE_SIGN: "${{ matrix.platform }}-py${{ matrix.python }}"
diff --git a/Dockerfile--alpine.tmpl b/Dockerfile--alpine.tmpl
index 081a856..7593cec 100644
--- a/Dockerfile--alpine.tmpl
+++ b/Dockerfile--alpine.tmpl
@@ -1,8 +1,10 @@
-ARG PYTHON_VERSION 
+ARG PYTHON_VERSION=3.12
 
 # --------------------------------------------- base1
 FROM python:${PYTHON_VERSION}-alpine AS base1
 
+ENV PYTHON_BINARY=python3
+
 # --------------------------------------------- final
 FROM base1 AS final
 
diff --git a/Dockerfile--astralinux_1_7.tmpl b/Dockerfile--astralinux_1_7.tmpl
new file mode 100644
index 0000000..f1db1e3
--- /dev/null
+++ b/Dockerfile--astralinux_1_7.tmpl
@@ -0,0 +1,29 @@
+ARG PG_VERSION=17
+ARG PYTHON_VERSION=3
+
+# --------------------------------------------- base1
+FROM packpack/packpack:astra-1.7 AS base1
+
+# --------------------------------------------- base2_with_python-3
+FROM base1 AS base2_with_python-3
+RUN apt install -y python3 python3-dev python3-venv
+
+ENV PYTHON_BINARY=python3
+
+# --------------------------------------------- final
+FROM base2_with_python-${PYTHON_VERSION} AS final
+
+RUN useradd -m test
+
+ADD --chown=test:test . /home/test/testgres
+WORKDIR /home/test/testgres
+RUN mkdir /home/test/testgres/logs
+RUN chown -R test:test /home/test/testgres/logs
+
+ENV LANG=C.UTF-8
+
+USER test
+
+ENTRYPOINT sh -c " \
+set -eux; \
+bash run_tests3.sh;"
diff --git a/pyproject.toml b/pyproject.toml
index 604a88a..b763c56 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -38,7 +38,7 @@ keywords = [
     "test",
 ]
 
-requires-python = ">=3.7.17"
+requires-python = ">=3.7.3"
 
 classifiers = [
     "Intended Audience :: Developers",
diff --git a/run_tests3.sh b/run_tests3.sh
index 5f3f639..03082a6 100755
--- a/run_tests3.sh
+++ b/run_tests3.sh
@@ -7,7 +7,7 @@ set -eux
 # prepare python environment
 VENV_PATH="/tmp/testgres_venv"
 rm -rf $VENV_PATH
-python -m venv "${VENV_PATH}"
+${PYTHON_BINARY} -m venv "${VENV_PATH}"
 export VIRTUAL_ENV_DISABLE_PROMPT=1
 source "${VENV_PATH}/bin/activate"