diff --git a/sdk_container/.repo/manifests/version.txt b/sdk_container/.repo/manifests/version.txt
index 48282a74e3..d6b65d28ff 100644
--- a/sdk_container/.repo/manifests/version.txt
+++ b/sdk_container/.repo/manifests/version.txt
@@ -1,4 +1,4 @@
-FLATCAR_VERSION=4152.2.1
+FLATCAR_VERSION=4152.2.1+nightly-20250220-2100
 FLATCAR_VERSION_ID=4152.2.1
-FLATCAR_BUILD_ID=""
+FLATCAR_BUILD_ID="nightly-20250220-2100"
 FLATCAR_SDK_VERSION=4152.0.0