diff --git a/package/poco/Config.in b/package/poco/Config.in
index 7cb9987ec7..9bdef125ad 100644
--- a/package/poco/Config.in
+++ b/package/poco/Config.in
@@ -12,7 +12,7 @@ config BR2_PACKAGE_POCO
 	bool "poco"
 	depends on BR2_INSTALL_LIBSTDCPP
 	depends on BR2_USE_WCHAR
-	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_5 # C++14
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_8 # C++17
 	# pthread_condattr_setclock
 	depends on BR2_TOOLCHAIN_HAS_THREADS_NPTL
 	depends on !BR2_STATIC_LIBS # dlopen()
@@ -116,8 +116,8 @@ config BR2_PACKAGE_POCO_ZIP
 
 endif # BR2_PACKAGE_POCO
 
-comment "poco needs a toolchain w/ wchar, NPTL, C++, dynamic library, gcc >= 5 w/ C++14"
+comment "poco needs a toolchain w/ wchar, NPTL, C++, dynamic library, gcc >= 8"
 	depends on !BR2_USE_WCHAR || !BR2_INSTALL_LIBSTDCPP \
 		|| !BR2_TOOLCHAIN_HAS_THREADS_NPTL || BR2_STATIC_LIBS \
-		|| !BR2_TOOLCHAIN_GCC_AT_LEAST_5
+		|| !BR2_TOOLCHAIN_GCC_AT_LEAST_8
 	depends on BR2_PACKAGE_POCO_ARCH_SUPPORTS
diff --git a/package/poco/poco.mk b/package/poco/poco.mk
index cc8a22fc2a..233252c67b 100644
--- a/package/poco/poco.mk
+++ b/package/poco/poco.mk
@@ -68,7 +68,6 @@ define POCO_CONFIGURE_CMDS
 	(cd $(@D); $(TARGET_MAKE_ENV) ./configure \
 		--config=Linux \
 		--prefix=/usr \
-		--cflags=-std=c++14 \
 		--ldflags="$(POCO_LDFLAGS)" \
 		--omit="$(POCO_OMIT)" \
 		$(POCO_CONF_OPTS) \