diff --git a/contrib/actions/install-dependencies.sh b/contrib/actions/install-dependencies.sh
index 730f92c7..0014bce0 100755
--- a/contrib/actions/install-dependencies.sh
+++ b/contrib/actions/install-dependencies.sh
@@ -1,4 +1,6 @@
 #!/bin/bash
+sudo cp contrib/actions/sources.list /etc/apt/sources.list
+sudo apt update
 sudo apt install git subversion build-essential python gawk unzip libncurses5-dev zlib1g-dev libssl-dev wget time || exit 1
 sudo apt clean
 sudo rm -rf /var/lib/apt/lists/*
diff --git a/contrib/actions/sources.list b/contrib/actions/sources.list
new file mode 100644
index 00000000..64c6aae7
--- /dev/null
+++ b/contrib/actions/sources.list
@@ -0,0 +1,2 @@
+deb http://mirror.netcologne.de/ubuntu/ bionic main restricted
+deb http://mirror.netcologne.de/ubuntu/ bionic-updates main restricted