diff --git a/CHANGELOG.md b/CHANGELOG.md
index f062ab1..6e2cd90 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog of Pmodules
 
+## Version 1.1.18
+### modulecmd
+
+### build-system
+
+### Toolchain
+* update to Tcl 8.6.14 (Issue #239)
 
 ## Version 1.1.17
 ### build-system
diff --git a/build b/build
index 97a64a3..057f2fa 100755
--- a/build
+++ b/build
@@ -1,9 +1,9 @@
 #!/usr/bin/env bash
 #
 
-declare -rx VERSION='1.1.17'
+declare -rx VERSION='1.1.18'
 declare -rx BASH5_VERSION='5.2.21'
-declare -rx TCL_VERSION='8.6.13'
+declare -rx TCL_VERSION='8.6.14'
 declare -rx TCLLIB_VERSION='1.21'
 declare -rx MODULES_VERSION='3.2.10.2'
 declare -rx LMOD_VERSION='8.7'