diff --git a/build.sh b/build.sh
index 3bfa746..892285f 100644
--- a/build.sh
+++ b/build.sh
@@ -24,7 +24,7 @@ function build {
 }
 
 function build_nvenc {
-  git clone -b sdk/9.0 git://github.com/FFmpeg/nv-codec-headers.git $SRC/ffnvcodec
+  git clone -b sdk/9.1 git://github.com/FFmpeg/nv-codec-headers.git $SRC/ffnvcodec
   cd $SRC/ffnvcodec
   make PREFIX=$BUILD install
   add_comp nvenc