diff --git a/bluebrain/deployment/environments/externals.yaml b/bluebrain/deployment/environments/externals.yaml
index 9c2ac4aab7e780..e9f45ad16422d2 100644
--- a/bluebrain/deployment/environments/externals.yaml
+++ b/bluebrain/deployment/environments/externals.yaml
@@ -95,7 +95,7 @@ spack:
     - darshan-util
     - doxygen
     - environment-modules@4.5.1
-    - ffmpeg
+    - ffmpeg+libx264
     - flex
     - freetype
     - gdb~python