diff --git a/platformio.ini b/platformio.ini
index e78124a4..636abad1 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -91,7 +91,7 @@ build_flags = ${arduino_base.build_flags}
   -D NRF52_PLATFORM
   -D LFS_NO_ASSERT=1
   -D EXTRAFS=1
-  -D USE_CC310_HW_CRYPTO=1
+;  -D USE_CC310_HW_CRYPTO=1
 lib_deps =
   ${arduino_base.lib_deps}
   https://github.com/oltaco/CustomLFS#0.2.3