diff --git a/build_scripts/win/common.py b/build_scripts/win/common.py
index 74fec26..3457895 100644
--- a/build_scripts/win/common.py
+++ b/build_scripts/win/common.py
@@ -11,7 +11,7 @@ import distutils.dir_util
 #Const globals
 #Version string must be bumped every release.
 #TODO: See developer documentation.
-VERSION_STRING = "3-1-0"
+VERSION_STRING = "3-1-0-dev"
 
 EXIT_CODE_SUCCESS = 0
 EXIT_CODE_FAILURE_BUILD_APP = 1
diff --git a/installer/installer.nsi b/installer/installer.nsi
index aacde54..c7e0264 100644
--- a/installer/installer.nsi
+++ b/installer/installer.nsi
@@ -11,7 +11,7 @@
 		!define THIRDDIR "..\third-party"
         !define PACKAGEDIR "..\src\package_files"
         !define PROJECTDIR "..\"
-        !define VERSION_STRING "3-1-0"
+        !define VERSION_STRING "3-1-0-dev"
 
         
     ;Installer icon
diff --git a/src/overlaycontroller.h b/src/overlaycontroller.h
index 1df1417..d515fb8 100644
--- a/src/overlaycontroller.h
+++ b/src/overlaycontroller.h
@@ -48,7 +48,7 @@ constexpr auto applicationOrganizationName = "AdvancedSettings-Team";
 constexpr auto applicationName = "OpenVRAdvancedSettings";
 constexpr const char* applicationKey = "OVRAS-Team.AdvancedSettings";
 constexpr const char* applicationDisplayName = "Advanced Settings";
-constexpr const char* applicationVersionString = "v3.1.0";
+constexpr const char* applicationVersionString = "v3.1.0-dev";
 } // namespace application_strings
 
 // application namespace