diff --git a/tools/jenkins/grpc_jenkins_slave/Dockerfile b/tools/jenkins/grpc_jenkins_slave/Dockerfile
index a900c9e8d122c80d23e0096a3909913e99c979a2..7248f974092b665f40a19b35b042f1f62e7bd79b 100644
--- a/tools/jenkins/grpc_jenkins_slave/Dockerfile
+++ b/tools/jenkins/grpc_jenkins_slave/Dockerfile
@@ -43,6 +43,7 @@ RUN apt-get update && apt-get install -y \
   gcc \
   gcc-multilib \
   git \
+  gyp \
   libc6 \
   libc6-dbg \
   libc6-dev \
diff --git a/tools/jenkins/grpc_jenkins_slave_32bits/Dockerfile b/tools/jenkins/grpc_jenkins_slave_32bits/Dockerfile
index 1d74856edfa8a06155629a0845926324bb0019b7..c1ff85c3ca1e9df179b710e9149c3103f8f3e3ba 100644
--- a/tools/jenkins/grpc_jenkins_slave_32bits/Dockerfile
+++ b/tools/jenkins/grpc_jenkins_slave_32bits/Dockerfile
@@ -43,6 +43,7 @@ RUN apt-get update && apt-get install -y \
   gcc \
   gcc-multilib \
   git \
+  gyp \
   libc6 \
   libc6-dbg \
   libc6-dev \