diff --git a/src/source_vapoursynth.cpp b/src/source_vapoursynth.cpp
index 7884b28..a86044f 100644
--- a/src/source_vapoursynth.cpp
+++ b/src/source_vapoursynth.cpp
@@ -30,7 +30,7 @@
 #include <QPair>
 
 static const unsigned int VER_X264_VSPIPE_API =  3;
-static const unsigned int VER_X264_VSPIPE_VER = 24;
+static const unsigned int VER_X264_VSPIPE_VER = 43;
 
 // ------------------------------------------------------------
 // Encoder Info