diff --git a/pkgs/development/python-modules/setuptools/44.0.nix b/pkgs/development/python-modules/setuptools/44.0.nix
index 66330ca250f8..c2f6eb230b47 100644
--- a/pkgs/development/python-modules/setuptools/44.0.nix
+++ b/pkgs/development/python-modules/setuptools/44.0.nix
@@ -27,14 +27,23 @@ let
       name = "${pname}-${version}-source";
     };
 
+    patches = [
+      ./tag-date.patch
+    ];
+
     buildPhase = ''
       ${python.pythonForBuild.interpreter} bootstrap.py
       ${python.pythonForBuild.interpreter} setup.py sdist --formats=gztar
+
+      # Here we untar the sdist and retar it in order to control the timestamps
+      # of all the files included
+      tar -xzf dist/${pname}-${version}.post0.tar.gz -C dist/
+      tar -czf dist/${name} -C dist/ --mtime="@$SOURCE_DATE_EPOCH" ${pname}-${version}.post0
     '';
 
     installPhase = ''
       echo "Moving sdist..."
-      mv dist/*.tar.gz $out
+      mv dist/${name} $out
     '';
   };
 in buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/setuptools/default.nix b/pkgs/development/python-modules/setuptools/default.nix
index b618ec6f634b..54eacea892ef 100644
--- a/pkgs/development/python-modules/setuptools/default.nix
+++ b/pkgs/development/python-modules/setuptools/default.nix
@@ -27,14 +27,23 @@ let
       name = "${pname}-${version}-source";
     };
 
+    patches = [
+      ./tag-date.patch
+    ];
+
     buildPhase = ''
       ${python.pythonForBuild.interpreter} bootstrap.py
       ${python.pythonForBuild.interpreter} setup.py sdist --formats=gztar
+
+      # Here we untar the sdist and retar it in order to control the timestamps
+      # of all the files included
+      tar -xzf dist/${pname}-${version}.post0.tar.gz -C dist/
+      tar -czf dist/${name} -C dist/ --mtime="@$SOURCE_DATE_EPOCH"  ${pname}-${version}.post0
     '';
 
     installPhase = ''
       echo "Moving sdist..."
-      mv dist/*.tar.gz $out
+      mv dist/${name} $out
     '';
   };
 in buildPythonPackage rec {
diff --git a/pkgs/development/python-modules/setuptools/tag-date.patch b/pkgs/development/python-modules/setuptools/tag-date.patch
new file mode 100644
index 000000000000..441177a5d17e
--- /dev/null
+++ b/pkgs/development/python-modules/setuptools/tag-date.patch
@@ -0,0 +1,12 @@
+diff --git a/setup.cfg b/setup.cfg
+index f23714b6..8aaeb330 100644
+--- a/setup.cfg
++++ b/setup.cfg
+@@ -1,6 +1,6 @@
+ [egg_info]
+ tag_build = .post
+-tag_date = 1
++tag_date = 0
+
+ [aliases]
+ clean_egg_info = egg_info -Db ''