diff --git a/meta-digi-dey/conf/distro/dey.conf b/meta-digi-dey/conf/distro/dey.conf
index c00ed9173..5f28ef0ce 100644
--- a/meta-digi-dey/conf/distro/dey.conf
+++ b/meta-digi-dey/conf/distro/dey.conf
@@ -57,6 +57,13 @@ FEATURE_PACKAGES_dey-wireless = "packagegroup-dey-wireless"
 # 5.65 version should be used, which is provided by the poky layer.
 PREFERRED_VERSION_bluez5 ?= "5.65"
 
+# The latest available versions of swupdate and libubootenv are 2023.12 and
+# 0.3.5, respectively. However, our custom patches haven't been ported or
+# tested for these versions yet, so until then, continue using the versions
+# we've been using in DEY 4.0 (2023.05 and 0.3.2) to guarantee stability.
+PREFERRED_VERSION_swupdate ?= "2023.05"
+PREFERRED_VERSION_libubootenv ?= "0.3.2"
+
 # There's a generic opencl-headers recipe in the thud branch of
 # meta-openembedded, but we should use the package provided by the imx-gpu-viv
 # recipe in case there are NXP-specific changes in it