diff --git a/src/runtime/debug/garbage.go b/src/runtime/debug/garbage.go
index 2fb85a652cf..4d3ca79a819 100644
--- a/src/runtime/debug/garbage.go
+++ b/src/runtime/debug/garbage.go
@@ -155,7 +155,7 @@ func SetPanicOnFault(enabled bool) bool {
 
 // WriteHeapDump writes a description of the heap and the objects in
 // it to the given file descriptor.
-// The heap dump format is defined at https://golang.org/s/go13heapdump.
+// The heap dump format is defined at https://golang.org/s/go15heapdump.
 func WriteHeapDump(fd uintptr)
 
 // SetTraceback sets the amount of detail printed by the runtime in
diff --git a/src/runtime/heapdump.go b/src/runtime/heapdump.go
index ae63b2182cf..e6a41f7f97a 100644
--- a/src/runtime/heapdump.go
+++ b/src/runtime/heapdump.go
@@ -7,7 +7,7 @@
 // finalizers, etc.) to a file.
 
 // The format of the dumped file is described at
-// https://golang.org/s/go14heapdump.
+// https://golang.org/s/go15heapdump.
 
 package runtime