diff --git a/src/hardware/hw_batching.c b/src/hardware/hw_batching.c
index 3a8eef55e8bb181975c24779d59991c1e0fdc831..0ac33d1361d2a4bf92070a9d944c1bfeab9cd980 100644
--- a/src/hardware/hw_batching.c
+++ b/src/hardware/hw_batching.c
@@ -1,6 +1,6 @@
 // SONIC ROBO BLAST 2
 //-----------------------------------------------------------------------------
-// Copyright (C) 2021 by Sonic Team Junior.
+// Copyright (C) 2020-2021 by Sonic Team Junior.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
diff --git a/src/hardware/hw_batching.h b/src/hardware/hw_batching.h
index d886dcf2a97f80969bd7ddfb5978bf9724cb2950..9ccc7de3df503a12211b41d871c2734af70b0bf6 100644
--- a/src/hardware/hw_batching.h
+++ b/src/hardware/hw_batching.h
@@ -1,6 +1,6 @@
 // SONIC ROBO BLAST 2
 //-----------------------------------------------------------------------------
-// Copyright (C) 2021 by Sonic Team Junior.
+// Copyright (C) 2020-2021 by Sonic Team Junior.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
diff --git a/src/http-mserv.c b/src/http-mserv.c
index 0b9eb2f9295fa8b3f97bb0571dd03bac9a436c93..f9134ba5008b0ba5f27e0b6ae48feee7ec95feef 100644
--- a/src/http-mserv.c
+++ b/src/http-mserv.c
@@ -1,6 +1,6 @@
 // SONIC ROBO BLAST 2
 //-----------------------------------------------------------------------------
-// Copyright (C) 2021 by James R.
+// Copyright (C) 2020-2021 by James R.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
diff --git a/src/i_threads.h b/src/i_threads.h
index 924d283c471a07befb86cd1d739fee0800af2697..bc752181f521c447d736368cb0c17b09ae998572 100644
--- a/src/i_threads.h
+++ b/src/i_threads.h
@@ -1,6 +1,6 @@
 // SONIC ROBO BLAST 2
 //-----------------------------------------------------------------------------
-// Copyright (C) 2021 by James R.
+// Copyright (C) 2020-2021 by James R.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
diff --git a/src/lua_polyobjlib.c b/src/lua_polyobjlib.c
index cfd6b67d47463a9c8768946ac8518ba8da5a6797..5d76a912de0c06948dee8ecbb8039bfb356033ec 100644
--- a/src/lua_polyobjlib.c
+++ b/src/lua_polyobjlib.c
@@ -1,7 +1,7 @@
 // SONIC ROBO BLAST 2
 //-----------------------------------------------------------------------------
-// Copyright (C) 2021 by Iestyn "Monster Iestyn" Jealous.
-// Copyright (C) 2021 by Sonic Team Junior.
+// Copyright (C) 2020-2021 by Iestyn "Monster Iestyn" Jealous.
+// Copyright (C) 2020-2021 by Sonic Team Junior.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
diff --git a/src/lua_taglib.c b/src/lua_taglib.c
index 55abb09cd56c8e87caf413b6197090e03434e2ca..d0cf385a9d89217113d21161df820c5a838e2c01 100644
--- a/src/lua_taglib.c
+++ b/src/lua_taglib.c
@@ -1,7 +1,7 @@
 // SONIC ROBO BLAST 2
 //-----------------------------------------------------------------------------
-// Copyright (C) 2021 by James R.
-// Copyright (C) 2021 by Sonic Team Junior.
+// Copyright (C) 2020-2021 by James R.
+// Copyright (C) 2020-2021 by Sonic Team Junior.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
diff --git a/src/m_perfstats.c b/src/m_perfstats.c
index c4b2044b35b412a35601270a652e143cb84d0500..8a99312e6a3d987de4ef6ab7965e31cbdc220458 100644
--- a/src/m_perfstats.c
+++ b/src/m_perfstats.c
@@ -1,6 +1,6 @@
 // SONIC ROBO BLAST 2
 //-----------------------------------------------------------------------------
-// Copyright (C) 2021 by Sonic Team Junior.
+// Copyright (C) 2020-2021 by Sonic Team Junior.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
diff --git a/src/m_perfstats.h b/src/m_perfstats.h
index 8f87146f20df4cecb5376f8d86d7756f7c328de6..71208fbc19f95d886e7cce17c1982ff61de0089f 100644
--- a/src/m_perfstats.h
+++ b/src/m_perfstats.h
@@ -1,6 +1,6 @@
 // SONIC ROBO BLAST 2
 //-----------------------------------------------------------------------------
-// Copyright (C) 2021 by Sonic Team Junior.
+// Copyright (C) 2020-2021 by Sonic Team Junior.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
diff --git a/src/mserv.c b/src/mserv.c
index f46a3d44422fdcd81240b65cf790f7f9748a2766..f64c7bea91b6487efca07f01ba7bb41ad786358c 100644
--- a/src/mserv.c
+++ b/src/mserv.c
@@ -2,7 +2,7 @@
 //-----------------------------------------------------------------------------
 // Copyright (C) 1998-2000 by DooM Legacy Team.
 // Copyright (C) 1999-2021 by Sonic Team Junior.
-// Copyright (C)      2021 by James R.
+// Copyright (C) 2020-2021 by James R.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
diff --git a/src/mserv.h b/src/mserv.h
index ff12fa1f8c85b1603a53d2e536373518bbe4056a..7a3b3d8ec8461d9b4734353a23e37e587369be86 100644
--- a/src/mserv.h
+++ b/src/mserv.h
@@ -2,7 +2,7 @@
 //-----------------------------------------------------------------------------
 // Copyright (C) 1998-2000 by DooM Legacy Team.
 // Copyright (C) 1999-2021 by Sonic Team Junior.
-// Copyright (C)      2021 by James R.
+// Copyright (C) 2020-2021 by James R.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
diff --git a/src/r_patch.c b/src/r_patch.c
index ef41aa574ee19e8d7d1a2ff98f3945435c952b48..6827cd12c75d397fdaa771f3373c5d4812a83952 100644
--- a/src/r_patch.c
+++ b/src/r_patch.c
@@ -1,6 +1,6 @@
 // SONIC ROBO BLAST 2
 //-----------------------------------------------------------------------------
-// Copyright (C) 2021 by Jaime "Lactozilla" Passos.
+// Copyright (C) 2020-2021 by Jaime "Lactozilla" Passos.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
diff --git a/src/r_patch.h b/src/r_patch.h
index d4ca8e6ee0af6e8faa03fb97c9be542feab69e9b..96fbb0e28c11d3bbd91f84edc999a7d6d5223c70 100644
--- a/src/r_patch.h
+++ b/src/r_patch.h
@@ -1,6 +1,6 @@
 // SONIC ROBO BLAST 2
 //-----------------------------------------------------------------------------
-// Copyright (C) 2021 by Jaime "Lactozilla" Passos.
+// Copyright (C) 2020-2021 by Jaime "Lactozilla" Passos.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
diff --git a/src/r_patchrotation.c b/src/r_patchrotation.c
index a6c2b41ce2f8fabb3d1e998212fd3c3eedb94e58..a9b4a2b8fb701d45f7f21deefee1f75c768ee797 100644
--- a/src/r_patchrotation.c
+++ b/src/r_patchrotation.c
@@ -1,6 +1,6 @@
 // SONIC ROBO BLAST 2
 //-----------------------------------------------------------------------------
-// Copyright (C) 2021 by Jaime "Lactozilla" Passos.
+// Copyright (C) 2020-2021 by Jaime "Lactozilla" Passos.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
diff --git a/src/r_patchrotation.h b/src/r_patchrotation.h
index c64a083664ab480398a10151a96962be9d6bfef8..689b7d411b63d0143804d789da0501fb1f0d1415 100644
--- a/src/r_patchrotation.h
+++ b/src/r_patchrotation.h
@@ -1,6 +1,6 @@
 // SONIC ROBO BLAST 2
 //-----------------------------------------------------------------------------
-// Copyright (C) 2021 by Jaime "Lactozilla" Passos.
+// Copyright (C) 2020-2021 by Jaime "Lactozilla" Passos.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
diff --git a/src/sdl/i_threads.c b/src/sdl/i_threads.c
index bf966858411bb71e7aca1e659055bc924dc447e2..f73d00bcfc2ee70eba47f432812ec8cb4db7ec39 100644
--- a/src/sdl/i_threads.c
+++ b/src/sdl/i_threads.c
@@ -1,6 +1,6 @@
 // SONIC ROBO BLAST 2
 //-----------------------------------------------------------------------------
-// Copyright (C) 2021 by James R.
+// Copyright (C) 2020-2021 by James R.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
diff --git a/src/taglist.c b/src/taglist.c
index 1b4a64ecdbb1badb222638f96e52182e88c1a182..28fa48c25779cccf68089c1bd53deb2fbbc69d4e 100644
--- a/src/taglist.c
+++ b/src/taglist.c
@@ -2,7 +2,7 @@
 //-----------------------------------------------------------------------------
 // Copyright (C) 1998-2000 by DooM Legacy Team.
 // Copyright (C) 1999-2021 by Sonic Team Junior.
-// Copyright (C)      2021 by Nev3r.
+// Copyright (C) 2020-2021 by Nev3r.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.
diff --git a/src/taglist.h b/src/taglist.h
index 80100f80ac2405286dcbaa99cd561fed177db104..146d76131f3b985466b3049ddb3efe29f2a03a52 100644
--- a/src/taglist.h
+++ b/src/taglist.h
@@ -2,7 +2,7 @@
 //-----------------------------------------------------------------------------
 // Copyright (C) 1998-2000 by DooM Legacy Team.
 // Copyright (C) 1999-2021 by Sonic Team Junior.
-// Copyright (C)      2021 by Nev3r.
+// Copyright (C) 2020-2021 by Nev3r.
 //
 // This program is free software distributed under the
 // terms of the GNU General Public License, version 2.