diff --git a/Packages/Trapezoidal_decomposition/version b/Packages/Trapezoidal_decomposition/version
index 8a6ba1e634b..2bb89f90627 100644
--- a/Packages/Trapezoidal_decomposition/version
+++ b/Packages/Trapezoidal_decomposition/version
@@ -1 +1 @@
-1.22 (18 Apr 2002)
+1.23 (21 Apr 2002)