diff --git a/targets/esp32c3.json b/targets/esp32c3.json
index 96af15d51..ea46d0788 100644
--- a/targets/esp32c3.json
+++ b/targets/esp32c3.json
@@ -5,6 +5,7 @@
 	"serial": "usb",
 	"rtlib": "compiler-rt",
 	"libc": "picolibc",
+	"default-stack-size": 8192,
 	"cflags": [
 		"-march=rv32imc"
 	],
diff --git a/targets/esp32s3.json b/targets/esp32s3.json
index 1b9159230..e47c6784d 100644
--- a/targets/esp32s3.json
+++ b/targets/esp32s3.json
@@ -6,7 +6,7 @@
 	"scheduler": "tasks",
 	"serial": "usb",
 	"linker": "ld.lld",
-	"default-stack-size": 2048,
+	"default-stack-size": 8192,
 	"rtlib": "compiler-rt",
 	"libc": "picolibc",
 	"linkerscript": "targets/esp32s3.ld",