diff --git a/sdk_container/.repo/manifests/version.txt b/sdk_container/.repo/manifests/version.txt
index 1284fed531..47898c930b 100644
--- a/sdk_container/.repo/manifests/version.txt
+++ b/sdk_container/.repo/manifests/version.txt
@@ -1,4 +1,4 @@
-FLATCAR_VERSION=4502.0.0+nightly-20251028-2100
-FLATCAR_VERSION_ID=4502.0.0
-FLATCAR_BUILD_ID="nightly-20251028-2100"
-FLATCAR_SDK_VERSION=4502.0.0+nightly-20251028-2100
+FLATCAR_VERSION=4503.0.0+nightly-20251029-2100
+FLATCAR_VERSION_ID=4503.0.0
+FLATCAR_BUILD_ID="nightly-20251029-2100"
+FLATCAR_SDK_VERSION=4503.0.0+nightly-20251029-2100