diff --git a/examples/gcoap_dtls/Makefile.ci b/examples/gcoap_dtls/Makefile.ci
index e0a920b713..b5fc7e8abc 100644
--- a/examples/gcoap_dtls/Makefile.ci
+++ b/examples/gcoap_dtls/Makefile.ci
@@ -29,6 +29,8 @@ BOARD_INSUFFICIENT_MEMORY := \
     samd10-xmini \
     saml10-xpro \
     saml11-xpro \
+    seeedstudio-gd32 \
+    sipeed-longan-nano \
     slstk3400a \
     stk3200 \
     stm32f030f4-demo \