diff --git a/apps/HelloWorld/src/HelloWorld.lf b/apps/HelloWorld/src/HelloWorld.lf
index f642a0a..132aa0c 100644
--- a/apps/HelloWorld/src/HelloWorld.lf
+++ b/apps/HelloWorld/src/HelloWorld.lf
@@ -3,7 +3,7 @@
 */
 target C {
     platform: "Zephyr",
-    threading: false
+    single-threaded: true
 };
 
 main reactor {
diff --git a/apps/NrfBlinky/src/NrfBlinky.lf b/apps/NrfBlinky/src/NrfBlinky.lf
index df5af3a..12d5314 100644
--- a/apps/NrfBlinky/src/NrfBlinky.lf
+++ b/apps/NrfBlinky/src/NrfBlinky.lf
@@ -7,7 +7,7 @@ target C {
         name: "Zephyr",
         board: nrf52dk_nrf52832,
     },
-    threading: false
+    single-threaded: true
 }
 
 preamble {=
diff --git a/apps/NrfBlinky/src/NrfToggleGPIO.lf b/apps/NrfBlinky/src/NrfToggleGPIO.lf
index 67fbc46..55a98c6 100644
--- a/apps/NrfBlinky/src/NrfToggleGPIO.lf
+++ b/apps/NrfBlinky/src/NrfToggleGPIO.lf
@@ -8,7 +8,7 @@ target C {
         name: "Zephyr",
         board: nrf52dk_nrf52832,
     },
-    threading: false,
+    single-threaded: true,
 }
 
 preamble {=