diff --git a/Installer/debian/Dockerfile.build b/Installer/debian/Dockerfile.build
index e36a16888..791475461 100644
--- a/Installer/debian/Dockerfile.build
+++ b/Installer/debian/Dockerfile.build
@@ -3,6 +3,7 @@ FROM ubuntu:latest
 # Source build packages locally
 ARG DOCKER_BUILD_PROXY
 ENV DOCKER_BUILD_PROXY $DOCKER_BUILD_PROXY
+ENV DEBIAN_FRONTEND noninteractive
 
 # Install common build tools
 RUN set -uex; \
diff --git a/Installer/fedora/Dockerfile.build b/Installer/fedora/Dockerfile.build
index 859c22796..1a6714957 100644
--- a/Installer/fedora/Dockerfile.build
+++ b/Installer/fedora/Dockerfile.build
@@ -7,7 +7,7 @@ ENV DOCKER_BUILD_PROXY $DOCKER_BUILD_PROXY
 # Install common build tools
 RUN dnf -y install deltarpm
 RUN dnf -y upgrade
-RUN dnf -y install @"Minimal Install" @buildsys-build yum-utils rpm-sign gnupg rpmdevtools
+RUN dnf -y install @"Minimal Install" @buildsys-build yum-utils rpm-sign gnupg rpmdevtools --allowerasing
 
 # Install mono things
 RUN dnf -y install mono-devel gnome-sharp-devel dos2unix git nuget
diff --git a/Updates/build_version.txt b/Updates/build_version.txt
index b8626c4cf..bf0d87ab1 100644
--- a/Updates/build_version.txt
+++ b/Updates/build_version.txt
@@ -1 +1 @@
-4
+4
\ No newline at end of file