diff --git a/package/ntpsec/Config.in b/package/ntpsec/Config.in
index 1e88046420..c81673481e 100644
--- a/package/ntpsec/Config.in
+++ b/package/ntpsec/Config.in
@@ -1,5 +1,9 @@
 config BR2_PACKAGE_NTPSEC
 	bool "ntpsec"
+	depends on BR2_USE_MMU # python3
+	depends on BR2_USE_WCHAR # python3
+	depends on BR2_TOOLCHAIN_HAS_THREADS # python3
+	depends on !BR2_STATIC_LIBS # python3
 	select BR2_PACKAGE_LIBCAP
 	select BR2_PACKAGE_OPENSSL
 	select BR2_PACKAGE_PYTHON3
@@ -26,3 +30,8 @@ config BR2_PACKAGE_NTPSEC_NTS
 	  Enable Network Time Security (NTS) support.
 
 endif
+
+comment "ntpsec needs a toolchain w/ wchar, threads, dynamic library"
+	depends on BR2_USE_MMU
+	depends on !BR2_USE_WCHAR || !BR2_TOOLCHAIN_HAS_THREADS || \
+		BR2_STATIC_LIBS