diff --git a/mmc/activation_mmc.cpp b/mmc/activation_mmc.cpp
index b5a5669..a50e99b 100644
--- a/mmc/activation_mmc.cpp
+++ b/mmc/activation_mmc.cpp
@@ -16,7 +16,7 @@
 void ActivationMMC::startActivation()
 {}
 
-void ActivationMMC::unitStateChange(sdbusplus::message::message&)
+void ActivationMMC::unitStateChange(sdbusplus::message_t&)
 {}
 
 void ActivationMMC::finishActivation()
diff --git a/mmc/activation_mmc.hpp b/mmc/activation_mmc.hpp
index 68caf36..aca8811 100644
--- a/mmc/activation_mmc.hpp
+++ b/mmc/activation_mmc.hpp
@@ -22,7 +22,7 @@
     Activations activation(Activations value) override;
 
   private:
-    void unitStateChange(sdbusplus::message::message& msg) override;
+    void unitStateChange(sdbusplus::message_t& msg) override;
     void startActivation() override;
     void finishActivation() override;
 };
diff --git a/mmc/item_updater_mmc.hpp b/mmc/item_updater_mmc.hpp
index 76dfcaa..a8b495b 100644
--- a/mmc/item_updater_mmc.hpp
+++ b/mmc/item_updater_mmc.hpp
@@ -28,7 +28,7 @@
 class ItemUpdaterMMC : public ItemUpdater
 {
   public:
-    ItemUpdaterMMC(sdbusplus::bus::bus& bus, const std::string& path) :
+    ItemUpdaterMMC(sdbusplus::bus_t& bus, const std::string& path) :
         ItemUpdater(bus, path)
     {
         processPNORImage();