diff --git a/util/manibuilder/Dockerfile.anita b/util/manibuilder/Dockerfile.anita
index 6ef41b980..52befce00 100644
--- a/util/manibuilder/Dockerfile.anita
+++ b/util/manibuilder/Dockerfile.anita
@@ -7,7 +7,6 @@ RUN \
 	useradd -p locked -m mani && \
 	apt-get -qq update && \
 	apt-get -qq upgrade && \
-	apt-get -qq dist-upgrade && \
 	apt-get -qqy install git python-is-python3 python3-pexpect \
 			     python3-distutils genisoimage qemu-system && \
 	apt-get clean
diff --git a/util/manibuilder/Dockerfile.debian-debootstrap b/util/manibuilder/Dockerfile.debian-debootstrap
index d2e0eee79..c9af0bf3a 100644
--- a/util/manibuilder/Dockerfile.debian-debootstrap
+++ b/util/manibuilder/Dockerfile.debian-debootstrap
@@ -4,7 +4,6 @@ RUN \
 	useradd -p locked -m mani && \
 	apt-get -qq update && \
 	apt-get -qq upgrade && \
-	apt-get -qq dist-upgrade && \
 	apt-get -qqy install gcc make git doxygen ccache pkg-config \
 		libpci-dev libusb-dev libftdi-dev libusb-1.0-0-dev && \
 	{ apt-get -qqy install libjaylink-dev || true; } && \
diff --git a/util/manibuilder/Dockerfile.ubuntu-debootstrap b/util/manibuilder/Dockerfile.ubuntu-debootstrap
index f002d9a12..62cc4615b 100644
--- a/util/manibuilder/Dockerfile.ubuntu-debootstrap
+++ b/util/manibuilder/Dockerfile.ubuntu-debootstrap
@@ -17,7 +17,6 @@ RUN \
 	fi && \
 	apt-get -qq update && \
 	apt-get -qq upgrade && \
-	apt-get -qq dist-upgrade && \
 	apt-get -qqy install gcc make git doxygen ccache pkg-config \
 		libpci-dev libusb-dev libftdi-dev libusb-1.0-0-dev && \
 	{ apt-get -qqy install libjaylink-dev || true; } && \