diff --git a/sdk_container/.repo/manifests/version.txt b/sdk_container/.repo/manifests/version.txt
index c5904e7a488..8f8b94e936a 100644
--- a/sdk_container/.repo/manifests/version.txt
+++ b/sdk_container/.repo/manifests/version.txt
@@ -1,4 +1,4 @@
-FLATCAR_VERSION=3920.0.0+nightly-20240325-2100
-FLATCAR_VERSION_ID=3920.0.0
-FLATCAR_BUILD_ID="nightly-20240325-2100"
-FLATCAR_SDK_VERSION=3920.0.0+nightly-20240325-2100
+FLATCAR_VERSION=3921.0.0+nightly-20240326-2100
+FLATCAR_VERSION_ID=3921.0.0
+FLATCAR_BUILD_ID="nightly-20240326-2100"
+FLATCAR_SDK_VERSION=3921.0.0+nightly-20240326-2100