diff --git a/sdk_container/.repo/manifests/version.txt b/sdk_container/.repo/manifests/version.txt
index f32ccec2008..ec289ff3ba6 100644
--- a/sdk_container/.repo/manifests/version.txt
+++ b/sdk_container/.repo/manifests/version.txt
@@ -1,4 +1,4 @@
-FLATCAR_VERSION=3689.0.0
+FLATCAR_VERSION=3689.0.0+nightly-20230809-2100
 FLATCAR_VERSION_ID=3689.0.0
-FLATCAR_BUILD_ID=""
+FLATCAR_BUILD_ID="nightly-20230809-2100"
 FLATCAR_SDK_VERSION=3689.0.0