diff --git a/common.py b/common.py
index 0ce2857..db431ca 100644
--- a/common.py
+++ b/common.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 
 #
-# (c) 2019-2022 Antmicro <www.antmicro.com>
+# (c) 2019-2023 Antmicro <www.antmicro.com>
 # License: Apache-2.0
 #
 
diff --git a/graph.py b/graph.py
index e978d5c..52e4846 100644
--- a/graph.py
+++ b/graph.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 
 #
-# (c) 2019-2022 Antmicro <www.antmicro.com>
+# (c) 2019-2023 Antmicro <www.antmicro.com>
 # License: Apache-2.0
 #
 
diff --git a/sargraph.py b/sargraph.py
index 5a63df4..575b8ba 100755
--- a/sargraph.py
+++ b/sargraph.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 
 #
-# (c) 2019-2022 Antmicro <www.antmicro.com>
+# (c) 2019-2023 Antmicro <www.antmicro.com>
 # License: Apache-2.0
 #
 
diff --git a/watch.py b/watch.py
index 615bc82..d7bf239 100644
--- a/watch.py
+++ b/watch.py
@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 
 #
-# (c) 2019-2022 Antmicro <www.antmicro.com>
+# (c) 2019-2023 Antmicro <www.antmicro.com>
 # License: Apache-2.0
 #