diff --git a/examples/chef/nrfconnect/rpc.overlay b/examples/chef/nrfconnect/rpc.overlay
index e3b08a0a2a5178..ce776f2e27e000 100644
--- a/examples/chef/nrfconnect/rpc.overlay
+++ b/examples/chef/nrfconnect/rpc.overlay
@@ -49,6 +49,8 @@ CONFIG_LOG_OUTPUT=y
 # Increase zephyr tty rx buffer
 CONFIG_CONSOLE_GETCHAR_BUFSIZE=128
 
-# Increase BLE thread stack size
-CONFIG_BT_RX_STACK_SIZE=2048
+# Increase thread stack sizes
+CONFIG_BT_RX_STACK_SIZE=4096
+CONFIG_MAIN_STACK_SIZE=8092
+CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2048
 
diff --git a/examples/lighting-app/nrfconnect/rpc.overlay b/examples/lighting-app/nrfconnect/rpc.overlay
index 315349a69555e2..3d74670fe1da6b 100644
--- a/examples/lighting-app/nrfconnect/rpc.overlay
+++ b/examples/lighting-app/nrfconnect/rpc.overlay
@@ -46,6 +46,8 @@ CONFIG_LOG_OUTPUT=y
 # Increase zephyr tty rx buffer
 CONFIG_CONSOLE_GETCHAR_BUFSIZE=128
 
-# Increase BLE thread stack size
-CONFIG_BT_RX_STACK_SIZE=2048
+# Increase thread stack sizes
+CONFIG_BT_RX_STACK_SIZE=4096
+CONFIG_MAIN_STACK_SIZE=8092
+CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2048