diff --git a/winsup/utils/cygcheck.cc b/winsup/utils/cygcheck.cc
index 4a6792910..f6adf518a 100644
--- a/winsup/utils/cygcheck.cc
+++ b/winsup/utils/cygcheck.cc
@@ -6,7 +6,7 @@
    Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
    details. */
 
-#define _WIN32_WINNT 0x0602
+#define _WIN32_WINNT 0x0a00
 #define cygwin_internal cygwin_internal_dontuse
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/winsup/utils/cygpath.cc b/winsup/utils/cygpath.cc
index 3d402ea4a..6ab98cd4d 100644
--- a/winsup/utils/cygpath.cc
+++ b/winsup/utils/cygpath.cc
@@ -21,8 +21,8 @@ details. */
 #include <wctype.h>
 #include <errno.h>
 
-#define _WIN32_WINNT 0x0602
-#define WINVER 0x0602
+#define _WIN32_WINNT 0x0a00
+#define WINVER 0x0a00
 #define NOCOMATTRIBUTE
 #include <windows.h>
 #include <userenv.h>
diff --git a/winsup/utils/ldd.cc b/winsup/utils/ldd.cc
index 233d65097..152119f2e 100644
--- a/winsup/utils/ldd.cc
+++ b/winsup/utils/ldd.cc
@@ -37,7 +37,7 @@
 #include <unistd.h>
 #include <libgen.h>
 
-#define _WIN32_WINNT 0x0501
+#define _WIN32_WINNT 0x0a00
 #include <windows.h>
 #include <imagehlp.h>
 #include <psapi.h>
diff --git a/winsup/utils/locale.cc b/winsup/utils/locale.cc
index 1d55d346e..c9d4b5d59 100644
--- a/winsup/utils/locale.cc
+++ b/winsup/utils/locale.cc
@@ -35,8 +35,8 @@
 #include <limits.h>
 #include <sys/cygwin.h>
 #include <cygwin/version.h>
-#define _WIN32_WINNT 0x0602
-#define WINVER 0x0602
+#define _WIN32_WINNT 0x0a00
+#define WINVER 0x0a00
 #include <windows.h>
 
 #define LOCALE_ALIAS		"/usr/share/locale/locale.alias"
diff --git a/winsup/utils/mkgroup.c b/winsup/utils/mkgroup.c
index f57592f82..a9949d5f1 100644
--- a/winsup/utils/mkgroup.c
+++ b/winsup/utils/mkgroup.c
@@ -6,7 +6,7 @@
    Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
    details. */
 
-#define _WIN32_WINNT 0x0600
+#define _WIN32_WINNT 0x0a00
 #include <errno.h>
 #include <ctype.h>
 #include <stdlib.h>
diff --git a/winsup/utils/mkpasswd.c b/winsup/utils/mkpasswd.c
index 3f33496aa..27c607f47 100644
--- a/winsup/utils/mkpasswd.c
+++ b/winsup/utils/mkpasswd.c
@@ -6,7 +6,7 @@
    Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
    details. */
 
-#define _WIN32_WINNT 0x0600
+#define _WIN32_WINNT 0x0a00
 #include <errno.h>
 #include <ctype.h>
 #include <stdlib.h>