diff --git a/tcl.spec b/tcl.spec
index c079b77..4657e7d 100644
--- a/tcl.spec
+++ b/tcl.spec
@@ -36,7 +36,7 @@ Provides:       tclsh%{TCL_MINOR}
 Obsoletes:      itcl < 4.0.0
 Provides:       itcl = 4.0.0
 PreReq:         /bin/rm
-Source0:        ftp://ftp.tcl.tk/pub/tcl/tcl8_5/%name%{version}%{rrc}-src.tar.gz
+Source0:        ftp://ftp.tcl.tk/pub/tcl/tcl8_6/%name%{version}%{rrc}-src.tar.gz
 Source1:        tcl-rpmlintrc
 Source2:        baselibs.conf
 Source3:        macros.tcl