diff --git a/src/systemd/__init__.py b/src/systemd/__init__.py
index ad529f0..e69de29 100644
--- a/src/systemd/__init__.py
+++ b/src/systemd/__init__.py
@@ -1,3 +0,0 @@
-# SPDX-License-Identifier: LGPL-2.1-or-later
-#
-#  Copyright 2012 David Strauss
diff --git a/src/systemd/_daemon.c b/src/systemd/_daemon.c
index add1599..177d568 100644
--- a/src/systemd/_daemon.c
+++ b/src/systemd/_daemon.c
@@ -1,9 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
-/***
-  Copyright 2013-2016 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
-***/
-
 #define PY_SSIZE_T_CLEAN
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wredundant-decls"
diff --git a/src/systemd/_journal.c b/src/systemd/_journal.c
index 8820a37..b3871ec 100644
--- a/src/systemd/_journal.c
+++ b/src/systemd/_journal.c
@@ -1,9 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
-/***
-  Copyright 2012 David Strauss <david@davidstrauss.net>
-***/
-
 #include <Python.h>
 
 #include <alloca.h>
diff --git a/src/systemd/_reader.c b/src/systemd/_reader.c
index 3f642fc..184c288 100644
--- a/src/systemd/_reader.c
+++ b/src/systemd/_reader.c
@@ -1,9 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
-/***
-  Copyright 2013 Steven Hiscocks, Zbigniew Jędrzejewski-Szmek
-***/
-
 #define PY_SSIZE_T_CLEAN
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wredundant-decls"
diff --git a/src/systemd/id128.c b/src/systemd/id128.c
index a78d8be..ca2e10e 100644
--- a/src/systemd/id128.c
+++ b/src/systemd/id128.c
@@ -1,9 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
-/***
-  Copyright 2013 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
-***/
-
 #include <Python.h>
 
 /* Our include is first, so that our defines are replaced by the ones
diff --git a/src/systemd/journal.py b/src/systemd/journal.py
index ac02126..16729e9 100644
--- a/src/systemd/journal.py
+++ b/src/systemd/journal.py
@@ -1,8 +1,4 @@
 # SPDX-License-Identifier: LGPL-2.1-or-later
-#
-#  Copyright 2012 David Strauss <david@davidstrauss.net>
-#  Copyright 2012 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
-#  Copyright 2012 Marti Raudsepp <marti@juffo.org>
 
 import sys as _sys
 import datetime as _datetime
diff --git a/src/systemd/login.c b/src/systemd/login.c
index 9f3347e..d2420c3 100644
--- a/src/systemd/login.c
+++ b/src/systemd/login.c
@@ -1,9 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
-/***
-  Copyright 2013 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
-***/
-
 #define PY_SSIZE_T_CLEAN
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wredundant-decls"
diff --git a/src/systemd/macro.h b/src/systemd/macro.h
index 71ae2db..d4e1796 100644
--- a/src/systemd/macro.h
+++ b/src/systemd/macro.h
@@ -2,10 +2,6 @@
 
 #pragma once
 
-/***
-  Copyright 2010 Lennart Poettering
-***/
-
 #define DISABLE_WARNING_MISSING_PROTOTYPES                              \
         _Pragma("GCC diagnostic push");                                 \
         _Pragma("GCC diagnostic ignored \"-Wmissing-prototypes\"")
diff --git a/src/systemd/pyutil.c b/src/systemd/pyutil.c
index b2a2c36..7b9ed6d 100644
--- a/src/systemd/pyutil.c
+++ b/src/systemd/pyutil.c
@@ -1,9 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
-/***
-  Copyright 2013 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
-***/
-
 #include <Python.h>
 #include "pyutil.h"
 
diff --git a/src/systemd/pyutil.h b/src/systemd/pyutil.h
index 306e087..66bbdf9 100644
--- a/src/systemd/pyutil.h
+++ b/src/systemd/pyutil.h
@@ -2,10 +2,6 @@
 
 #pragma once
 
-/***
-  Copyright 2013 Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
-***/
-
 #ifndef Py_TYPE
 /* avoid duplication warnings from errors in Python 2.7 headers */
 # include <Python.h>
diff --git a/src/systemd/strv.c b/src/systemd/strv.c
index f644839..f3d9c53 100644
--- a/src/systemd/strv.c
+++ b/src/systemd/strv.c
@@ -1,9 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
-/***
-  Copyright 2010 Lennart Poettering
-***/
-
 #include <stdlib.h>
 
 void strv_clear(char **l) {
diff --git a/src/systemd/strv.h b/src/systemd/strv.h
index ce50149..4cf0d8f 100644
--- a/src/systemd/strv.h
+++ b/src/systemd/strv.h
@@ -1,9 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
-/***
-  Copyright 2010 Lennart Poettering
-***/
-
 #include "macro.h"
 
 char **strv_free(char **l);
diff --git a/src/systemd/util.c b/src/systemd/util.c
index b16a20f..4fe41a9 100644
--- a/src/systemd/util.c
+++ b/src/systemd/util.c
@@ -1,7 +1,4 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
-/***
-  Copyright 2010 Lennart Poettering
-***/
 
 /* stuff imported from systemd without any changes */
 
diff --git a/src/systemd/util.h b/src/systemd/util.h
index 2dd7612..1438f85 100644
--- a/src/systemd/util.h
+++ b/src/systemd/util.h
@@ -2,10 +2,6 @@
 
 #pragma once
 
-/***
-  Copyright 2010 Lennart Poettering
-***/
-
 #include <netinet/ip.h>
 #include <arpa/inet.h>