diff --git a/.github/workflows/action.yml b/.github/workflows/action.yml
index e3f02ff0586be8b33d70b385c4c41cc39178ac25..69ccb69e8fe4ee3f0dbe6f7a72f0fac7ecb61102 100644
--- a/.github/workflows/action.yml
+++ b/.github/workflows/action.yml
@@ -49,7 +49,6 @@ jobs:
          - {RTT_BSP: "tm4c123bsp", RTT_TOOL_CHAIN: "sourcery-arm"}
          - {RTT_BSP: "tm4c129x", RTT_TOOL_CHAIN: "sourcery-arm"}
          - {RTT_BSP: "lpc43xx/M4", RTT_TOOL_CHAIN: "sourcery-arm"}
-         - {RTT_BSP: "lpc55sxx", RTT_TOOL_CHAIN: "sourcery-arm"}
          - {RTT_BSP: "lpc176x", RTT_TOOL_CHAIN: "sourcery-arm"}
          - {RTT_BSP: "lpc178x", RTT_TOOL_CHAIN: "sourcery-arm"}
          - {RTT_BSP: "lpc408x", RTT_TOOL_CHAIN: "sourcery-arm"}