diff --git a/Dockerfile b/Dockerfile
index 5ef9775..562d13f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -20,7 +20,7 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get install -qq -y --fix-missing --no-ins
     libssl-dev \
     make \
     automake \
-    cmake \
+    ninja-build \
     g++ \
     subversion \
     python3-dev \