diff --git a/Python/bltinmodule.c b/Python/bltinmodule.c
index efeabcc..d6ae46f 100644
--- a/Python/bltinmodule.c
+++ b/Python/bltinmodule.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Python/cgensupport.c b/Python/cgensupport.c
index 9a33eb9..b24c80a 100644
--- a/Python/cgensupport.c
+++ b/Python/cgensupport.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Python/errors.c b/Python/errors.c
index 5a46d4e..5814dd7 100644
--- a/Python/errors.c
+++ b/Python/errors.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Python/fmod.c b/Python/fmod.c
index 1724b9e..607f6a5 100644
--- a/Python/fmod.c
+++ b/Python/fmod.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Python/getcwd.c b/Python/getcwd.c
index acdf117..96c2291 100644
--- a/Python/getcwd.c
+++ b/Python/getcwd.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Python/import.c b/Python/import.c
index c76d8c9..5667c77 100644
--- a/Python/import.c
+++ b/Python/import.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Python/marshal.c b/Python/marshal.c
index aac2672..8e68e28 100644
--- a/Python/marshal.c
+++ b/Python/marshal.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Python/modsupport.c b/Python/modsupport.c
index b7239d3..4512844 100644
--- a/Python/modsupport.c
+++ b/Python/modsupport.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Python/pythonmain.c b/Python/pythonmain.c
index 3a37544..ea0d67d 100644
--- a/Python/pythonmain.c
+++ b/Python/pythonmain.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Python/strerror.c b/Python/strerror.c
index 37f9964..ce9bd98 100644
--- a/Python/strerror.c
+++ b/Python/strerror.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Python/structmember.c b/Python/structmember.c
index bd04e7c..173b3f0 100644
--- a/Python/structmember.c
+++ b/Python/structmember.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved
diff --git a/Python/traceback.c b/Python/traceback.c
index ea99152..bcd2f76 100644
--- a/Python/traceback.c
+++ b/Python/traceback.c
@@ -1,5 +1,5 @@
 /***********************************************************
-Copyright 1991 by Stichting Mathematisch Centrum, Amsterdam, The
+Copyright 1991, 1992 by Stichting Mathematisch Centrum, Amsterdam, The
 Netherlands.
 
                         All Rights Reserved