diff --git a/autoreload.c b/autoreload.c
index c9ad45d..1c2fbf7 100644
--- a/autoreload.c
+++ b/autoreload.c
@@ -1,5 +1,5 @@
 /* Copyright 2017 Max Voit, Bert Muennich
- * Copyright 2022 nsxiv contributors
+ * Copyright 2022-2023 nsxiv contributors
  *
  * This file is a part of nsxiv.
  *
diff --git a/commands.c b/commands.c
index c1e19b4..a4ae38d 100644
--- a/commands.c
+++ b/commands.c
@@ -1,5 +1,5 @@
 /* Copyright 2011-2020 Bert Muennich
- * Copyright 2021-2022 nsxiv contributors
+ * Copyright 2021-2023 nsxiv contributors
  *
  * This file is a part of nsxiv.
  *
diff --git a/image.c b/image.c
index 57955d8..cded0fe 100644
--- a/image.c
+++ b/image.c
@@ -1,5 +1,5 @@
 /* Copyright 2011-2020 Bert Muennich
- * Copyright 2021-2022 nsxiv contributors
+ * Copyright 2021-2023 nsxiv contributors
  *
  * This file is a part of nsxiv.
  *
diff --git a/main.c b/main.c
index 3b47775..eed945c 100644
--- a/main.c
+++ b/main.c
@@ -1,5 +1,5 @@
 /* Copyright 2011-2020 Bert Muennich
- * Copyright 2021-2022 nsxiv contributors
+ * Copyright 2021-2023 nsxiv contributors
  *
  * This file is a part of nsxiv.
  *
diff --git a/nsxiv.h b/nsxiv.h
index cd571af..8011f9e 100644
--- a/nsxiv.h
+++ b/nsxiv.h
@@ -1,5 +1,5 @@
 /* Copyright 2011-2020 Bert Muennich
- * Copyright 2021-2022 nsxiv contributors
+ * Copyright 2021-2023 nsxiv contributors
  *
  * This file is a part of nsxiv.
  *
diff --git a/options.c b/options.c
index 37ad60d..a306e3d 100644
--- a/options.c
+++ b/options.c
@@ -1,5 +1,5 @@
 /* Copyright 2011-2020 Bert Muennich
- * Copyright 2021-2022 nsxiv contributors
+ * Copyright 2021-2023 nsxiv contributors
  *
  * This file is a part of nsxiv.
  *
diff --git a/thumbs.c b/thumbs.c
index 038b501..b5da098 100644
--- a/thumbs.c
+++ b/thumbs.c
@@ -1,5 +1,5 @@
 /* Copyright 2011-2020 Bert Muennich
- * Copyright 2021-2022 nsxiv contributors
+ * Copyright 2021-2023 nsxiv contributors
  *
  * This file is a part of nsxiv.
  *
diff --git a/util.c b/util.c
index 94d4247..1e6bc70 100644
--- a/util.c
+++ b/util.c
@@ -1,5 +1,5 @@
 /* Copyright 2011-2020 Bert Muennich
- * Copyright 2021-2022 nsxiv contributors
+ * Copyright 2021-2023 nsxiv contributors
  *
  * This file is a part of nsxiv.
  *
diff --git a/window.c b/window.c
index 6e62979..85ad542 100644
--- a/window.c
+++ b/window.c
@@ -1,5 +1,5 @@
 /* Copyright 2011-2020 Bert Muennich
- * Copyright 2021-2022 nsxiv contributors
+ * Copyright 2021-2023 nsxiv contributors
  *
  * This file is a part of nsxiv.
  *