diff --git a/CMakeLists.txt b/CMakeLists.txt
index 05a0ad8..b296717 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,7 +7,7 @@ project(opentracing-cpp)
 
 set(OPENTRACING_ABI_VERSION "1")
 set(OPENTRACING_VERSION_MAJOR "1")
-set(OPENTRACING_VERSION_MINOR "3")
+set(OPENTRACING_VERSION_MINOR "4")
 set(OPENTRACING_VERSION_PATCH "0")
 set(OPENTRACING_VERSION_STRING
   "${OPENTRACING_VERSION_MAJOR}.${OPENTRACING_VERSION_MINOR}.${OPENTRACING_VERSION_PATCH}")