diff --git a/api/Dockerfile b/api/Dockerfile
index 72eb257..3edbbb2 100644
--- a/api/Dockerfile
+++ b/api/Dockerfile
@@ -10,7 +10,7 @@ RUN for i in $(seq 1001 1500); do \
 RUN apt-get update && \
     apt-get install -y libxml2 gnupg tar coreutils util-linux libc6-dev \
     binutils build-essential locales libpcre3-dev libevent-dev libgmp3-dev \
-    libncurses6 libncurses5 libedit-dev libseccomp-dev rename && \
+    libncurses6 libncurses5 libedit-dev libseccomp-dev rename procps && \
     rm -rf /var/lib/apt/lists/*
 
 RUN sed -i '/en_US.UTF-8/s/^# //g' /etc/locale.gen && locale-gen