diff --git a/tests/sys/psa_crypto_ecdsa/Makefile b/tests/sys/psa_crypto_ecdsa/Makefile
index 12f8f1cf9a00..1ffb6ed2685f 100644
--- a/tests/sys/psa_crypto_ecdsa/Makefile
+++ b/tests/sys/psa_crypto_ecdsa/Makefile
@@ -17,4 +17,6 @@ endif
 
 SHOULD_RUN_KCONFIG :=
 
+CFLAGS += -DTHREAD_STACKSIZE_MAIN=4096
+
 include $(RIOTBASE)/Makefile.include
diff --git a/tests/sys/psa_crypto_ecdsa/Makefile.ci b/tests/sys/psa_crypto_ecdsa/Makefile.ci
index 04da97e287d4..6a2fca3cafc6 100644
--- a/tests/sys/psa_crypto_ecdsa/Makefile.ci
+++ b/tests/sys/psa_crypto_ecdsa/Makefile.ci
@@ -6,7 +6,9 @@ BOARD_INSUFFICIENT_MEMORY := \
     atmega328p \
     atmega328p-xplained-mini \
     atmega8 \
+    nucleo-f031k6 \
     nucleo-l011k4 \
     samd10-xmini \
+    stk3200 \
     stm32f030f4-demo \
     #
diff --git a/tests/sys/psa_crypto_eddsa/Makefile b/tests/sys/psa_crypto_eddsa/Makefile
index 92ae917a4f82..f8cd24031875 100644
--- a/tests/sys/psa_crypto_eddsa/Makefile
+++ b/tests/sys/psa_crypto_eddsa/Makefile
@@ -15,4 +15,6 @@ endif
 
 SHOULD_RUN_KCONFIG :=
 
+CFLAGS += -DTHREAD_STACKSIZE_MAIN=4096
+
 include $(RIOTBASE)/Makefile.include
diff --git a/tests/sys/psa_crypto_eddsa/Makefile.ci b/tests/sys/psa_crypto_eddsa/Makefile.ci
index 04da97e287d4..6a2fca3cafc6 100644
--- a/tests/sys/psa_crypto_eddsa/Makefile.ci
+++ b/tests/sys/psa_crypto_eddsa/Makefile.ci
@@ -6,7 +6,9 @@ BOARD_INSUFFICIENT_MEMORY := \
     atmega328p \
     atmega328p-xplained-mini \
     atmega8 \
+    nucleo-f031k6 \
     nucleo-l011k4 \
     samd10-xmini \
+    stk3200 \
     stm32f030f4-demo \
     #