diff --git a/Makefile b/Makefile
index 929ca70..d4fd399 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-# Version 1.2 (2025-08-05)
+# git helper Makefile: Version 1.3 (2025-08-05)
 default: help
 
 .ONESHELL:
@@ -34,6 +34,9 @@ init: print_head
 		$(INIT_FILE)
 	fi
 
+update_submodules:
+	git submodule foreach "git checkout master && git pull && git submodule init && git submodule update"
+
 status: print_head
 	giti
 	echo "Submodules:"
diff --git a/pylibs b/pylibs
index 458c6b4..39994b2 160000
--- a/pylibs
+++ b/pylibs
@@ -1 +1 @@
-Subproject commit 458c6b463d37518d458f49a340056140bc1c5e87
+Subproject commit 39994b26a2ef2e667e7094dac05777c696408857