Index: generic/nsf.c
===================================================================
diff -u -r4f25a7683bc3261be5c5d2e7ab07a3cb0d6d6e96 -r610ad7027f342ea6a0cdfef057da37b0d4d6a02a
--- generic/nsf.c	(.../nsf.c)	(revision 4f25a7683bc3261be5c5d2e7ab07a3cb0d6d6e96)
+++ generic/nsf.c	(.../nsf.c)	(revision 610ad7027f342ea6a0cdfef057da37b0d4d6a02a)
@@ -20976,10 +20976,10 @@
   static NsfMutex initMutex = 0;
 
 #ifdef USE_TCL_STUBS
-  if (Tcl_InitStubs(interp, "8.1", 0) == NULL) {
+  if (Tcl_InitStubs(interp, "8.5", 0) == NULL) {
     return TCL_ERROR;
   }
-  if (Tcl_TomMath_InitStubs(interp, "8.1") == NULL) {
+  if (Tcl_TomMath_InitStubs(interp, "8.5") == NULL) {
     return TCL_ERROR;
   }
 #endif