diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4ff34ab82..210825065 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -17,10 +17,10 @@ if(CMAKE_C_COMPILER_ID STREQUAL "AppleClang" AND CMAKE_C_COMPILER_VERSION VERSIO
 endif()
 set(ROARING_LIB_NAME roaring)
 set(PROJECT_VERSION_MAJOR 0)
-set(PROJECT_VERSION_MINOR 8)
-set(PROJECT_VERSION_PATCH 1)
-set(ROARING_LIB_VERSION "0.8.1" CACHE STRING "Roaring library version")
-set(ROARING_LIB_SOVERSION "6" CACHE STRING "Roaring library soversion")
+set(PROJECT_VERSION_MINOR 9)
+set(PROJECT_VERSION_PATCH 0)
+set(ROARING_LIB_VERSION "0.9.0" CACHE STRING "Roaring library version")
+set(ROARING_LIB_SOVERSION "7" CACHE STRING "Roaring library soversion")
 
 option(ROARING_EXCEPTIONS "Enable exception-throwing interface" ON)
 if(NOT ROARING_EXCEPTIONS)
diff --git a/include/roaring/roaring_version.h b/include/roaring/roaring_version.h
index df6a1c90f..b7ad25e23 100644
--- a/include/roaring/roaring_version.h
+++ b/include/roaring/roaring_version.h
@@ -1,10 +1,10 @@
 // /include/roaring/roaring_version.h automatically generated by release.py, do not change by hand 
 #ifndef ROARING_INCLUDE_ROARING_VERSION 
 #define ROARING_INCLUDE_ROARING_VERSION 
-#define ROARING_VERSION "0.8.1"
+#define ROARING_VERSION "0.9.0"
 enum { 
     ROARING_VERSION_MAJOR = 0,
-    ROARING_VERSION_MINOR = 8,
-    ROARING_VERSION_REVISION = 1
+    ROARING_VERSION_MINOR = 9,
+    ROARING_VERSION_REVISION = 0
 }; 
 #endif // ROARING_INCLUDE_ROARING_VERSION