diff --git a/pyproject.toml b/pyproject.toml
index 715a3849..c687e728 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,5 +1,5 @@
 [build-system]
-requires = ["setuptools>=42", "wheel", "setuptools_scm[toml]>=3.5.0"]
+requires = ["setuptools>=42", "wheel", "setuptools_scm[toml]>=3.3.3"]
 build-backend = "setuptools.build_meta"
 
 [tools.setuptools_scm]
diff --git a/setup.cfg b/setup.cfg
index 5fd60f9b..15c05031 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -34,7 +34,7 @@ install_requires =
     importlib-metadata;python_version<"3.8"
     requests
     wheel
-    py7zr>=0.7.0b2,<0.8
+    py7zr>=0.7.0,<0.8.0
     packaging
 setup_requires =
     setuptools-scm[toml]>=3.3.3
diff --git a/setup.py b/setup.py
index 12ebc967..b66ff956 100644
--- a/setup.py
+++ b/setup.py
@@ -2,5 +2,4 @@
 
 from setuptools import setup
 
-setup(use_scm_version={"local_scheme": "no-local-version"},
-      setup_requires=['setuptools-scm>=3.5.0', 'setuptools>=42.0'])
+setup(use_scm_version={"local_scheme": "no-local-version"})