diff --git a/sdk_container/.repo/manifests/version.txt b/sdk_container/.repo/manifests/version.txt
index ef6e00d554..daa6435636 100644
--- a/sdk_container/.repo/manifests/version.txt
+++ b/sdk_container/.repo/manifests/version.txt
@@ -1,4 +1,4 @@
-FLATCAR_VERSION=3552.0.0+nightly-20230323-2100
-FLATCAR_VERSION_ID=3552.0.0
-FLATCAR_BUILD_ID="nightly-20230323-2100"
-FLATCAR_SDK_VERSION=3552.0.0+nightly-20230323-2100
+FLATCAR_VERSION=3556.0.0+nightly-20230327-2100
+FLATCAR_VERSION_ID=3556.0.0
+FLATCAR_BUILD_ID="nightly-20230327-2100"
+FLATCAR_SDK_VERSION=3556.0.0+nightly-20230327-2100
diff --git a/sdk_container/src/third_party/coreos-overlay b/sdk_container/src/third_party/coreos-overlay
index 4630c24e5c..73af6246ae 160000
--- a/sdk_container/src/third_party/coreos-overlay
+++ b/sdk_container/src/third_party/coreos-overlay
@@ -1 +1 @@
-Subproject commit 4630c24e5c9475972ecb226643566cf4bf335d51
+Subproject commit 73af6246aebc65975a6ca29ffe778bccb3fc79a1