diff --git a/build/install-deps-ubuntu.sh b/build/install-deps-ubuntu.sh
index f47675522..7ca84cabf 100755
--- a/build/install-deps-ubuntu.sh
+++ b/build/install-deps-ubuntu.sh
@@ -5,5 +5,4 @@ DEBIAN_FRONTEND=noninteractive apt install --yes \
     intltool \
     pkg-config \
     libstfl-dev \
-    mono-devel \
     libgtk2.0-cil-dev