diff --git a/subsys/net/ip/Kconfig.mgmt b/subsys/net/ip/Kconfig.mgmt
index 8dc6d21df4f..fd967cc6619 100644
--- a/subsys/net/ip/Kconfig.mgmt
+++ b/subsys/net/ip/Kconfig.mgmt
@@ -25,6 +25,7 @@ if NET_MGMT_EVENT
 
 config NET_MGMT_EVENT_STACK_SIZE
 	int "Stack size for the inner thread handling event callbacks"
+	default 2048 if COVERAGE_GCOV
 	default 768
 	help
 	  Set the internal stack size for NM to run registered callbacks
diff --git a/subsys/testsuite/ztest/Kconfig b/subsys/testsuite/ztest/Kconfig
index 2509809d136..c618baee9de 100644
--- a/subsys/testsuite/ztest/Kconfig
+++ b/subsys/testsuite/ztest/Kconfig
@@ -14,6 +14,7 @@ config ZTEST
 config ZTEST_STACKSIZE
 	int "Test function thread stack size"
 	depends on ZTEST
+	default 2048 if COVERAGE_GCOV
 	default 1024
 
 config ZTEST_FAIL_FAST
diff --git a/tests/net/lib/dns_addremove/prj.conf b/tests/net/lib/dns_addremove/prj.conf
index 128a63a6e7f..21c5e6af661 100644
--- a/tests/net/lib/dns_addremove/prj.conf
+++ b/tests/net/lib/dns_addremove/prj.conf
@@ -9,7 +9,6 @@ CONFIG_DNS_NUM_CONCUR_QUERIES=1
 CONFIG_NET_LOG=y
 CONFIG_NET_MGMT=y
 CONFIG_NET_MGMT_EVENT=y
-CONFIG_NET_MGMT_EVENT_STACK_SIZE=768
 CONFIG_NET_MGMT_EVENT_THREAD_PRIO=7
 CONFIG_NET_MGMT_EVENT_QUEUE_SIZE=2
 CONFIG_NET_IPV4=y
@@ -17,4 +16,3 @@ CONFIG_NET_IPV6=y
 CONFIG_NET_ARP=n
 CONFIG_PRINTK=y
 CONFIG_ZTEST=y
-CONFIG_MAIN_STACK_SIZE=1344