diff --git a/package/tcl/tcl.hash b/package/tcl/tcl.hash
index dd6463781c..b344d26589 100644
--- a/package/tcl/tcl.hash
+++ b/package/tcl/tcl.hash
@@ -1,2 +1,2 @@
 # Locally calculated
-sha256 ce26d5b9c7504fc25d2f10ef0b82b14cf117315445b5afa9e673ed331830fb53 tcl8.6.5-src.tar.gz
+sha256 a265409781e4b3edcc4ef822533071b34c3dc6790b893963809b9fe221befe07  tcl8.6.6-src.tar.gz
diff --git a/package/tcl/tcl.mk b/package/tcl/tcl.mk
index a2ac8e6c83..ffef9cf8bd 100644
--- a/package/tcl/tcl.mk
+++ b/package/tcl/tcl.mk
@@ -5,7 +5,7 @@
 ################################################################################
 
 TCL_VERSION_MAJOR = 8.6
-TCL_VERSION = $(TCL_VERSION_MAJOR).5
+TCL_VERSION = $(TCL_VERSION_MAJOR).6
 TCL_SOURCE = tcl$(TCL_VERSION)-src.tar.gz
 TCL_SITE = http://downloads.sourceforge.net/project/tcl/Tcl/$(TCL_VERSION)
 TCL_LICENSE = tcl license