diff --git a/build_library/disk_layout.json b/build_library/disk_layout.json
index 5d90ccc6c6..33ae6cb473 100644
--- a/build_library/disk_layout.json
+++ b/build_library/disk_layout.json
@@ -16,7 +16,7 @@
         "blocks":"262144",
         "fs_type":"vfat",
         "mount":"/boot",
-        "features": ["hybrid"]
+        "features": []
       },
       "2":{
         "label":"BIOS-BOOT",
diff --git a/changelog/bugfixes/2025-02-14-fix-efi-partition-flags.md b/changelog/bugfixes/2025-02-14-fix-efi-partition-flags.md
new file mode 100644
index 0000000000..998dd47bd3
--- /dev/null
+++ b/changelog/bugfixes/2025-02-14-fix-efi-partition-flags.md
@@ -0,0 +1 @@
+- Fix non-conforming GPT partition table ([flatcar/Flatcar#1651](https://github.com/flatcar/Flatcar/issues/1651)
diff --git a/sdk_container/src/third_party/coreos-overlay/sys-apps/seismograph/seismograph-2.2.5-r3.ebuild b/sdk_container/src/third_party/coreos-overlay/sys-apps/seismograph/seismograph-2.2.5-r4.ebuild
similarity index 100%
rename from sdk_container/src/third_party/coreos-overlay/sys-apps/seismograph/seismograph-2.2.5-r3.ebuild
rename to sdk_container/src/third_party/coreos-overlay/sys-apps/seismograph/seismograph-2.2.5-r4.ebuild
diff --git a/sdk_container/src/third_party/coreos-overlay/sys-apps/seismograph/seismograph-9999.ebuild b/sdk_container/src/third_party/coreos-overlay/sys-apps/seismograph/seismograph-9999.ebuild
index d3721e5f85..78f25ae6d5 100644
--- a/sdk_container/src/third_party/coreos-overlay/sys-apps/seismograph/seismograph-9999.ebuild
+++ b/sdk_container/src/third_party/coreos-overlay/sys-apps/seismograph/seismograph-9999.ebuild
@@ -7,7 +7,7 @@ EGIT_REPO_URI="https://github.com/flatcar/seismograph.git"
 if [[ "${PV}" == 9999 ]]; then
 	KEYWORDS="~amd64 ~arm ~arm64 ~x86"
 else
-	EGIT_COMMIT="0d57463de18df81741375d628852c521542b6836" # flatcar-master
+	EGIT_COMMIT="e32ac4d13ca44333dc77e5872dbf23f964b6f1e2" # flatcar-master
 	KEYWORDS="amd64 arm arm64 x86"
 fi