diff --git a/package/rt-tests/Config.in b/package/rt-tests/Config.in
index 477fa288d7..47fa7cd840 100644
--- a/package/rt-tests/Config.in
+++ b/package/rt-tests/Config.in
@@ -1,7 +1,7 @@
 config BR2_PACKAGE_RT_TESTS
 	bool "rt-tests"
 	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL
-	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_14 # deadline scheduler syscall
+	depends on BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_5
 	depends on BR2_USE_MMU # fork(), numactl
 	depends on !BR2_STATIC_LIBS # dlopen
 	depends on !BR2_TOOLCHAIN_USES_MUSL # cyclictest
@@ -29,7 +29,7 @@ comment "rt-tests may not work on MIPS with an external uClibc toolchain"
 	depends on BR2_TOOLCHAIN_EXTERNAL_UCLIBC
 	depends on BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el
 
-comment "rt-tests needs a uClibc or glibc toolchain w/ NPTL, headers >= 3.14, dynamic library"
+comment "rt-tests needs a uClibc or glibc toolchain w/ NPTL, headers >= 4.5, dynamic library"
 	depends on !BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS \
-		|| BR2_TOOLCHAIN_USES_MUSL || !BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_14
+		|| BR2_TOOLCHAIN_USES_MUSL || !BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_5
 	depends on BR2_USE_MMU