diff --git a/scripts/Dockerfile-ubuntu_18_04 b/scripts/Dockerfile-ubuntu_18_04
index 480589b9..c4701312 100644
--- a/scripts/Dockerfile-ubuntu_18_04
+++ b/scripts/Dockerfile-ubuntu_18_04
@@ -6,6 +6,7 @@ ARG TZ="Europe/London"
 RUN apt-get update -y && \
     apt-get install -y --no-install-recommends software-properties-common && \
     add-apt-repository ppa:ubuntu-toolchain-r/test && \
+    add-apt-repository ppa:george-edison55/cmake-3.x && \
     apt-get update -y && \
     apt-get install -y \
         build-essential \