diff --git a/5.16.0.179/Dockerfile b/5.16.0.220/Dockerfile
similarity index 91%
rename from 5.16.0.179/Dockerfile
rename to 5.16.0.220/Dockerfile
index e87932f..91f4812 100644
--- a/5.16.0.179/Dockerfile
+++ b/5.16.0.220/Dockerfile
@@ -1,4 +1,4 @@
-FROM mono:5.16.0.179-slim
+FROM mono:5.16.0.220-slim
 
 # MAINTAINER Jo Shields <jo.shields@xamarin.com>
 # MAINTAINER Alexander Köplinger <alkpli@microsoft.com>
diff --git a/5.16.0.179/slim/Dockerfile b/5.16.0.220/slim/Dockerfile
similarity index 94%
rename from 5.16.0.179/slim/Dockerfile
rename to 5.16.0.220/slim/Dockerfile
index 54a18a1..ce81f95 100644
--- a/5.16.0.179/slim/Dockerfile
+++ b/5.16.0.220/slim/Dockerfile
@@ -3,7 +3,7 @@ FROM debian:jessie-slim
 # MAINTAINER Jo Shields <jo.shields@xamarin.com>
 # MAINTAINER Alexander Köplinger <alkpli@microsoft.com>
 
-ENV MONO_VERSION 5.16.0.179
+ENV MONO_VERSION 5.16.0.220
 
 RUN apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
 
diff --git a/generate-stackbrew-library.sh b/generate-stackbrew-library.sh
index 7dcabf2..d370f0c 100755
--- a/generate-stackbrew-library.sh
+++ b/generate-stackbrew-library.sh
@@ -7,8 +7,8 @@ aliases=(
 	'latest     -> 5.18.0.225'
 	'5.18.0     -> 5.18.0.225'
 	'5.18       -> 5.18.0.225'
-	'5.16.0     -> 5.16.0.179'
-	'5.16       -> 5.16.0.179'
+	'5.16.0     -> 5.16.0.220'
+	'5.16       -> 5.16.0.220'
 	'5          -> 5.18.0.225'
 	'4.8.0      -> 4.8.0.524'
 	'4.8        -> 4.8.0.524'