diff --git a/sdk_container/.repo/manifests/version.txt b/sdk_container/.repo/manifests/version.txt
index 89c0aa9b7a..15d915d3a5 100644
--- a/sdk_container/.repo/manifests/version.txt
+++ b/sdk_container/.repo/manifests/version.txt
@@ -1,4 +1,4 @@
-FLATCAR_VERSION=4081.3.4
+FLATCAR_VERSION=4081.3.4+nightly-20250711-2100
 FLATCAR_VERSION_ID=4081.3.4
-FLATCAR_BUILD_ID=""
+FLATCAR_BUILD_ID="nightly-20250711-2100"
 FLATCAR_SDK_VERSION=4081.0.0