diff --git a/ptbposter/ptbposter-tcb.sty b/ptbposter/ptbposter-tcb.sty
index a14e00d1d890921bd9802f6f3f175768435546f4..ece95ebb3763887eb3d7177c297380e74a7e0ddf 100644
--- a/ptbposter/ptbposter-tcb.sty
+++ b/ptbposter/ptbposter-tcb.sty
@@ -1,5 +1,6 @@
 
-\ProvidesPackage{ptbposter-tcb}[2020/02/28 v0.1f ptbposter/tcolorbox (RN)]
+\NeedsTeXFormat{LaTeX2e}[2020/10/01]
+\ProvidesPackage{ptbposter-tcb}[2021/09/21 1.0.1 ptbposter/tcolorbox (RN)]
 
 \newcommand*\PTB@posterSet{%
   columns=3,rows=5,spacing=\PTB@texthsep,showframe=false,}