diff --git a/platforms/esp32/sdk.version b/platforms/esp32/sdk.version
index 71cccc66d..312f3df1c 100644
--- a/platforms/esp32/sdk.version
+++ b/platforms/esp32/sdk.version
@@ -1 +1 @@
-docker.io/mgos/esp32-build:4.2-r5
+docker.io/mgos/esp32-build:4.2-r6