diff --git a/implementations/main.cpp b/implementations/main.cpp
index d8c739a..08c5c70 100644
--- a/implementations/main.cpp
+++ b/implementations/main.cpp
@@ -48,7 +48,7 @@ import ImsdBus;
 namespace {
 
 // ---- static config (env-overridable, same knobs as imsd.py) ---------------
-constexpr const char* Version = "0.3.12";
+constexpr const char* Version = "1.0.0";
 constexpr const char* BusName = "net.catcrafts.IMS1";
 constexpr const char* ObjPath = "/net/catcrafts/IMS1";
 constexpr const char* Iface = "net.catcrafts.IMS1";