diff --git a/ptbposter/ptbposter-tcb.sty b/ptbposter/ptbposter-tcb.sty
index ec081b8adf3b2d7bb4e27c42ba5d6805cb706fec..1ddc2b8ff1ebb5522a3422bf0086585282e0ad2b 100644
--- a/ptbposter/ptbposter-tcb.sty
+++ b/ptbposter/ptbposter-tcb.sty
@@ -1,5 +1,5 @@
 
-\ProvidesPackage{ptbposter-tcb}[2019/05/12 v0.1b ptbposter/tcolorbox (RN)]
+\ProvidesPackage{ptbposter-tcb}[2020/02/13 v0.1c ptbposter/tcolorbox (RN)]
 
 \newcommand*\PTB@posterSet{%
   columns=3,rows=5,spacing=\PTB@texthsep,showframe=false,}
@@ -32,7 +32,7 @@
     top=0pt,bottom=0pt,left=0pt,right=0pt
   },%
   boxes={
-    enhanced standard jigsaw,sharp corners=downhill,
+    enhanced standard jigsaw,%sharp corners=downhill,
     arc=0.012\PTB@scale@base,
     boxrule=\PTB@framethickness,
     boxsep=0pt,