diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8237fba..0b31858 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,19 +17,17 @@ jobs:
         include: # TODO: windows-latest
           - os: ubuntu-latest
             cache: ~/.cache/bazel
-            python: '3.8'
           - os: macos-latest
             cache: /private/var/tmp/_bazel_runner
-            python: '3.12'
 
     steps:
-      - name: Checkout Code
+      - name: Checkout code
         uses: actions/checkout@v3
 
       - name: Setup Python
         uses: actions/setup-python@v5
         with:
-          python-version: ${{ matrix.python }}
+          python-version: "3.8"
 
       - name: Setup bazelisk
         uses: bazelbuild/setup-bazelisk@v2
@@ -38,7 +36,6 @@ jobs:
         id: info
         run: |
           uname -a
-          python3 -V
           bazel info
         shell: bash
 
diff --git a/python/private/poetry_parse.bzl b/python/private/poetry_parse.bzl
index c4bdbc8..242cfb4 100644
--- a/python/private/poetry_parse.bzl
+++ b/python/private/poetry_parse.bzl
@@ -26,7 +26,7 @@ def dfs_cycles(graph):
 def normalize_dep_name(dep_name):
     return dep_name.strip().strip('"').strip("'").replace("_", "-").replace(".", "-").lower()
 
-def parse_lock_file(data, platforms = None, generate_extras = True, system_platform_tags = None):
+def parse_lock_file(data, platforms = None, generate_extras = True):
     _MARKERS = "markers = "
     _SOURCE_URL = "url = "
     _SOURCE_TYPE = "type = "
@@ -114,7 +114,7 @@ package(
   name = "{name}",
   constraint = "{name}=={version}",{description}
   files = {{{files}
-   }},{deps}{markers}{source_urls}{extra_index_urls}{platforms}{system_platform_tags}
+   }},{deps}{markers}{source_urls}{extra_index_urls}{platforms}
   visibility = [{visibility}],
 )
 """.format(
@@ -127,7 +127,6 @@ package(
             source_urls = "\n  source_urls = [\n{}\n  ],".format("\n".join(["    " + url + "," for url in source_urls])) if source_urls else "",
             extra_index_urls = "\n  extra_index_urls = [{}],".format(", ".join(extra_index_urls)) if extra_index_urls else "",
             platforms = "\n  platforms = {},".format(platforms) if platforms else "",
-            system_platform_tags = "\n  system_platform = {},".format(system_platform_tags) if system_platform_tags else "",
             visibility = ", ".join(['"{}"'.format(vis) for vis in visibility]),
         )
 
@@ -146,37 +145,6 @@ package(
 
     return result
 
-def get_system_platform_tags(rctx):
-    # DEPRECATED: the sytem interpreter must not be used
-    # Return a JSON string with a dict values as described in
-    # https://peps.python.org/pep-0508/#environment-markers and
-    # https://packaging.python.org/en/latest/specifications/platform-compatibility-tags/#platform-tag
-    result = rctx.execute(["python3", "-c", """
-import json
-import os
-import platform
-import sys
-import sysconfig
-print(json.dumps(json.dumps(dict(
-    os_name=os.name,
-    sys_platform=sys.platform,
-    platform_machine=platform.machine(),
-    platform_python_implementation=platform.python_implementation(),
-    platform_release=platform.release(),
-    platform_system=platform.system(),
-    platform_version=platform.version(),
-    python_version='.'.join(platform.python_version_tuple()[:2]),
-    python_full_version=platform.python_version(),
-    implementation_name=sys.implementation.name,
-    platform_tags=[sysconfig.get_platform()]
-    ))))"""])
-
-    if result.return_code == 0:
-        return result.stdout
-
-    print(result.stderr)
-    return "{}"
-
 def _poetry_parse_impl(rctx):
     interpreter = rctx.path(rctx.attr._python_host)
     command = "import tomllib; print('{0}', 1); print('ok'); print(tomllib.load(open('{0}', 'rb')))".format(rctx.path(rctx.attr.lock))
@@ -188,11 +156,9 @@ def _poetry_parse_impl(rctx):
     header = "# Autogenerated file by _poetry_parse_impl in {}".format(self)
     rules_repository = self.split("/", 1)[0]
     rules_repository = ("@@" if "~" in rules_repository else "@") + rules_repository
-    system_platform_tags_variable = "system_platform_tags"
     prefix = '''{header}\n\nload("{name}//python:poetry_deps.bzl", "package")'''.format(header = header, name = rules_repository)
-    system_platform_tags = """{k} = {v}""".format(k = system_platform_tags_variable, v = get_system_platform_tags(rctx))
-    lock_file_content = parse_lock_file(rctx.read(rctx.attr.lock), rctx.attr.platforms, rctx.attr.generate_extras, system_platform_tags_variable)
-    rctx.file("BUILD", "{}\n\n{}\n\n{}".format(prefix, system_platform_tags, lock_file_content))
+    lock_file_content = parse_lock_file(rctx.read(rctx.attr.lock), rctx.attr.platforms, rctx.attr.generate_extras)
+    rctx.file("BUILD", "{}\n\n{}".format(prefix, lock_file_content))
     rctx.file("WORKSPACE")
 
 poetry_parse = repository_rule(
diff --git a/python/repositories.bzl b/python/repositories.bzl
index 292093c..6230ef2 100644
--- a/python/repositories.bzl
+++ b/python/repositories.bzl
@@ -105,6 +105,7 @@ def install_dependencies(toolchain_prefix, python_version, auth_patterns = {}, n
     srcs = glob(include=["**/*.py"]),
     data = glob(include=["**/*"], exclude=[
         "bin/**/*",
+        "**/__pycache__/**",
         "**/*.py",
         "**/*.pyc",
         "**/* *",