diff --git a/appveyor.yml b/appveyor.yml
index 6d30c3692..5d7cc4573 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,4 +1,4 @@
-version: '0.4.5.1_alpha({build})'
+version: '0.4.5.1_beta({build})'
 
 environment:
   ANDROID_HOME: C:\android-sdk-windows
diff --git a/edxp-core/build.gradle b/edxp-core/build.gradle
index 1bd73c5f2..324978769 100644
--- a/edxp-core/build.gradle
+++ b/edxp-core/build.gradle
@@ -4,7 +4,7 @@ import org.gradle.internal.os.OperatingSystem
 apply plugin: 'com.android.library'
 
 // Values set here will be overriden by AppVeyor, feel free to modify during development.
-def buildVersionName = 'v0.4.5.1_alpha'
+def buildVersionName = 'v0.4.5.1_beta'
 def buildVersionCode = 10000
 
 if (System.env.APPVEYOR_BUILD_VERSION != null) {