diff --git a/CMakeLists.txt b/CMakeLists.txt
index ec33b2ee987f27..bc7038fd03d07d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,7 +5,7 @@ SET(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/CMake" ${CMAKE_MODULE_PATH})
 
 # package information
 SET(PACKAGE_NAME      "hhvm")
-SET(PACKAGE_VERSION   "3.9.9-dev")
+SET(PACKAGE_VERSION   "3.9.9")
 SET(PACKAGE_STRING    "${PACKAGE_NAME} ${PACKAGE_VERSION}")
 SET(PACKAGE_TARNAME   "${PACKAGE_NAME}-${PACKAGE_VERSION}")
 SET(PACKAGE_BUGREPORT "https://github.com/facebook/hhvm/issues")
diff --git a/hphp/runtime/version.h b/hphp/runtime/version.h
index 827d42e33c077a..47c0cfbddb78d2 100644
--- a/hphp/runtime/version.h
+++ b/hphp/runtime/version.h
@@ -6,7 +6,7 @@
 #define HHVM_VERSION_MAJOR 3
 #define HHVM_VERSION_MINOR 9
 #define HHVM_VERSION_PATCH 9
-#define HHVM_VERSION_SUFFIX "-dev"
+#define HHVM_VERSION_SUFFIX ""
 
 /* HHVM_VERSION_ID minus the patch number
  * APIs should remain stable while this number is constant