diff --git a/promtail/Dockerfile b/promtail/Dockerfile
index d75ad3f..e5f9398 100644
--- a/promtail/Dockerfile
+++ b/promtail/Dockerfile
@@ -19,6 +19,7 @@ RUN set -eux; \
     apt-get install -qy --no-install-recommends \ 
         tar \
         unzip \
+        psmisc \
         ; \
     update-ca-certificates; \
     case "${BUILD_ARCH}" in \