diff --git a/zephcore/CMakeLists.txt b/zephcore/CMakeLists.txt
index 8f10f34..5841a15 100644
--- a/zephcore/CMakeLists.txt
+++ b/zephcore/CMakeLists.txt
@@ -661,7 +661,7 @@ add_definitions(-DFIRMWARE_BUILD_EPOCH=${ZEPHCORE_BUILD_EPOCH}u)
 # release is tagged/named, and what the Mesh America catalog uses as its version
 # key — so the configurator can match a running device against the catalog. Keep
 # all four identical; the release workflow reads this value directly.
-set(ZEPHCORE_FIRMWARE_VERSION "1.17.3-zephcore")
+set(ZEPHCORE_FIRMWARE_VERSION "1.17.4-zephcore")
 add_definitions(-DFIRMWARE_VERSION="${ZEPHCORE_FIRMWARE_VERSION}")
 
 add_subdirectory(lib/monocypher)
diff --git a/zephcore/boards/common/zephcore_common.conf b/zephcore/boards/common/zephcore_common.conf
index 0365f09..419b6d2 100644
--- a/zephcore/boards/common/zephcore_common.conf
+++ b/zephcore/boards/common/zephcore_common.conf
@@ -156,7 +156,7 @@ CONFIG_BT_DIS_FW_REV=y
 # of truth for the C side, injected as -DFIRMWARE_VERSION). This Kconfig value can't
 # read a C macro, so it must be bumped here too. Phones that read DIS and phones
 # that query CMD_DEVICE_QUERY should see the same version.
-CONFIG_BT_DIS_FW_REV_STR="1.17.3-zephcore"
+CONFIG_BT_DIS_FW_REV_STR="1.17.4-zephcore"
 CONFIG_BT_DIS_SW_REV=y
 CONFIG_BT_DIS_SW_REV_STR="Zephyr"
 CONFIG_BT_DIS_PNP=n