diff --git a/sdk_container/.repo/manifests/version.txt b/sdk_container/.repo/manifests/version.txt
index a334fa9b37..385d49c9af 100644
--- a/sdk_container/.repo/manifests/version.txt
+++ b/sdk_container/.repo/manifests/version.txt
@@ -1,4 +1,4 @@
-FLATCAR_VERSION=3815.0.0+nightly-20231219-2100
+FLATCAR_VERSION=3815.0.0+nightly-20231220-2100
 FLATCAR_VERSION_ID=3815.0.0
-FLATCAR_BUILD_ID="nightly-20231219-2100"
+FLATCAR_BUILD_ID="nightly-20231220-2100"
 FLATCAR_SDK_VERSION=3815.0.0