diff --git a/env/stacks.Dockerfile b/env/stacks.Dockerfile
index 69d9430..692ba7b 100644
--- a/env/stacks.Dockerfile
+++ b/env/stacks.Dockerfile
@@ -4,7 +4,7 @@ LABEL Sam Widmayer <sjwidmay@gmail.com>
 
 RUN  apt-get --allow-releaseinfo-change update \
     && apt-get install -y g++ \
-    apt-get install -y procps \
+    procps \
     automake \
     autoconf \
     libpcre3-dev \