diff --git a/doc/language_reference/conf.py b/doc/language_reference/conf.py
index dcd6fc7d1..1edd57538 100644
--- a/doc/language_reference/conf.py
+++ b/doc/language_reference/conf.py
@@ -5,6 +5,7 @@
 """
 
 import sys
+from datetime import datetime
 from pathlib import Path
 
 from sphinx.highlighting import lexers
@@ -21,7 +22,7 @@
 # -- Project information -----------------------------------------------------
 
 project = "RecordFlux"
-copyright = "2023, AdaCore"  # noqa: A001
+copyright = f"2023-{datetime.now().year}, AdaCore"  # noqa: A001, DTZ005
 author = "AdaCore"
 recordflux_version = __version__
 version = recordflux_version
diff --git a/doc/user_guide/conf.py b/doc/user_guide/conf.py
index 2d5f9fa58..4bee7e282 100644
--- a/doc/user_guide/conf.py
+++ b/doc/user_guide/conf.py
@@ -5,6 +5,7 @@
 """
 
 import sys
+from datetime import datetime
 from pathlib import Path
 
 from sphinx.highlighting import lexers
@@ -21,7 +22,7 @@
 # -- Project information -----------------------------------------------------
 
 project = "RecordFlux"
-copyright = "2023, AdaCore"  # noqa: A001
+copyright = f"2023-{datetime.now().year}, AdaCore"  # noqa: A001, DTZ005
 author = "AdaCore"
 recordflux_version = __version__
 version = recordflux_version