diff --git a/extra/ffmpeg/version b/extra/ffmpeg/version
index 7a9922c9..0f24972e 100644
--- a/extra/ffmpeg/version
+++ b/extra/ffmpeg/version
@@ -1 +1 @@
-7.1 2
+7.1 1
diff --git a/extra/x265/checksums b/extra/x265/checksums
index 94ab466f..6b045b47 100644
--- a/extra/x265/checksums
+++ b/extra/x265/checksums
@@ -1 +1 @@
-8ef365243847f9af566a3537e1a1d952df2c3d055669d4518542b411edc19c157c
+4cf771f32e0d0798e8703b833f56adcbfdd5257a870d52a8c8313d3a7aa1e1f857
diff --git a/extra/x265/sources b/extra/x265/sources
index 93f71e33..7e31f41d 100644
--- a/extra/x265/sources
+++ b/extra/x265/sources
@@ -1 +1 @@
-https://bitbucket.org/multicoreware/x265_git/downloads/x265_4.1.tar.gz
+https://bitbucket.org/multicoreware/x265_git/downloads/x265_4.0.tar.gz
diff --git a/extra/x265/version b/extra/x265/version
index 60d2ac65..6c899f05 100644
--- a/extra/x265/version
+++ b/extra/x265/version
@@ -1 +1 @@
-4.1 1
+4.0 1