diff --git a/boot/zephyr/prj.conf b/boot/zephyr/prj.conf
index b6a62a9..8d3cdb8 100644
--- a/boot/zephyr/prj.conf
+++ b/boot/zephyr/prj.conf
@@ -5,9 +5,7 @@
 CONFIG_MBEDTLS_CFG_FILE="mcuboot-mbedtls-cfg.h"
 
 CONFIG_BOOT_SWAP_SAVE_ENCTLV=n
-CONFIG_BOOT_ENCRYPT_RSA=n
-CONFIG_BOOT_ENCRYPT_EC256=n
-CONFIG_BOOT_ENCRYPT_X25519=n
+CONFIG_BOOT_ENCRYPT_IMAGE=n
 
 CONFIG_BOOT_UPGRADE_ONLY=n
 CONFIG_BOOT_BOOTSTRAP=n