diff --git a/.github/docker-images/ubuntu-18-x64/Dockerfile b/.github/docker-images/ubuntu-18-x64/Dockerfile
index 0bcd3d282..8252cf78f 100644
--- a/.github/docker-images/ubuntu-18-x64/Dockerfile
+++ b/.github/docker-images/ubuntu-18-x64/Dockerfile
@@ -22,6 +22,7 @@ RUN apt-get update -qq \
     software-properties-common \
     apt-transport-https \
     ca-certificates \
+    perl \
     && apt-get clean
 
 # Add the longsleep/golang-backports PPA