diff --git a/use_python3_interpreter_in_tests.diff b/use_python3_interpreter_in_tests.diff
deleted file mode 100644
index af6e8a9..0000000
--- a/use_python3_interpreter_in_tests.diff
+++ /dev/null
@@ -1,46 +0,0 @@
-Description: Use python3 in tests
- Some upstream tests for the custom `process` module call the python interpreter
- in a subprocess. In Debian, where we only build for python3, "python" is not
- available during build and thus makes those tests fail. This patch replaces
- "python" with "python3" where applicable.
-Author: Lukas Puehringer <lukas.puehringer@nyu.edu>
-Forwarded: not-needed
-
---- python-securesystemslib-0.16.0.orig/tests/test_process.py
-+++ python-securesystemslib-0.16.0/tests/test_process.py
-@@ -38,7 +38,7 @@ class Test_Process(unittest.TestCase):
- 
-     stdin_file = open(path)
-     cmd = \
--        "python -c \"import sys; assert(sys.stdin.read() == '{}')\""
-+        "python3 -c \"import sys; assert(sys.stdin.read() == '{}')\""
- 
-     # input is used in favor of stdin
-     securesystemslib.process.run(cmd.format("use input kwarg"),
-@@ -57,7 +57,7 @@ class Test_Process(unittest.TestCase):
-   def test_run_duplicate_streams(self):
-     """Test output as streams and as returned.  """
-     # Command that prints 'foo' to stdout and 'bar' to stderr.
--    cmd = ("python -c \""
-+    cmd = ("python3 -c \""
-         "import sys;"
-         "sys.stdout.write('foo');"
-         "sys.stderr.write('bar');\"")
-@@ -101,7 +101,7 @@ class Test_Process(unittest.TestCase):
- 
-   def test_run_cmd_arg_return_code(self):
-     """Test command arg as string and list using return code. """
--    cmd_str = ("python -c \""
-+    cmd_str = ("python3 -c \""
-         "import sys;"
-         "sys.exit(100)\"")
-     cmd_list = shlex.split(cmd_str)
-@@ -117,7 +117,7 @@ class Test_Process(unittest.TestCase):
-   def test_run_duplicate_streams_timeout(self):
-     """Test raise TimeoutExpired. """
-     with self.assertRaises(securesystemslib.process.subprocess.TimeoutExpired):
--      securesystemslib.process.run_duplicate_streams("python --version",
-+      securesystemslib.process.run_duplicate_streams("python3 --version",
-           timeout=-1)
- 
-