diff --git a/sci-libs/opencascade/opencascade-7.8.1.recipe b/sci-libs/opencascade/opencascade-7.8.1.recipe
index 87ec109b8..7eea7cdf7 100644
--- a/sci-libs/opencascade/opencascade-7.8.1.recipe
+++ b/sci-libs/opencascade/opencascade-7.8.1.recipe
@@ -309,9 +309,6 @@ BUILD_REQUIRES="
 	cmd:doxygen >= 1.8.4
 	cmd:lrelease$secondaryArchSuffix
 	cmd:tclsh
-	devel:libavcodec$secondaryArchSuffix >= 58
-	devel:libavformat$secondaryArchSuffix >= 58
-	devel:libavutil$secondaryArchSuffix >= 56
 	devel:libdraco$secondaryArchSuffix
 	devel:libexecinfo$secondaryArchSuffix
 #	devel:libEGL$secondaryArchSuffix
@@ -326,11 +323,11 @@ BUILD_REQUIRES="
 	devel:libQt5Widgets$secondaryArchSuffix
 	devel:libQt5Xml$secondaryArchSuffix
 	devel:librapidjson$secondaryArchSuffix
-	devel:libswscale$secondaryArchSuffix >= 5
 #	devel:libtbb$secondaryArchSuffix
 	devel:libtclstub8.6$secondaryArchSuffix
 #	devel:libtk8.6$secondaryArchSuffix
 	devel:libX11$secondaryArchSuffix
+	ffmpeg${secondaryArchSuffix}_devel
 	"
 BUILD_PREREQUIRES="
 	cmd:cmake