8 files changed, 3 insertions, 15 deletions
diff --git a/tests/docker/dockerfiles/centos7.docker b/tests/docker/dockerfiles/centos7.docker
index 9a2a2e515d..e197acdc3c 100644
--- a/tests/docker/dockerfiles/centos7.docker
+++ b/tests/docker/dockerfiles/centos7.docker
@@ -5,13 +5,11 @@ RUN yum -y update
 
 # Please keep this list sorted alphabetically
 ENV PACKAGES \
-    bison \
     bzip2 \
     bzip2-devel \
     ccache \
     csnappy-devel \
     dbus-daemon \
-    flex \
     gcc-c++ \
     gcc \
     gettext \
diff --git a/tests/docker/dockerfiles/centos8.docker b/tests/docker/dockerfiles/centos8.docker
index bfa0d33c9c..9852c5b9ee 100644
--- a/tests/docker/dockerfiles/centos8.docker
+++ b/tests/docker/dockerfiles/centos8.docker
@@ -3,11 +3,9 @@ FROM centos:8.1.1911
 RUN dnf -y update
 ENV PACKAGES \
     SDL-devel \
-    bison \
     bzip2 \
     bzip2-devel \
     dbus-daemon \
-    flex \
     gcc \
     gcc-c++ \
     gettext \
diff --git a/tests/docker/dockerfiles/debian-xtensa-cross.docker b/tests/docker/dockerfiles/debian-xtensa-cross.docker
index e6f93f65ee..beb73f46ba 100644
--- a/tests/docker/dockerfiles/debian-xtensa-cross.docker
+++ b/tests/docker/dockerfiles/debian-xtensa-cross.docker
@@ -11,11 +11,9 @@ RUN apt-get update && \
     DEBIAN_FRONTEND=noninteractive apt install -yy eatmydata && \
     DEBIAN_FRONTEND=noninteractive eatmydata \
     apt-get install -y --no-install-recommends \
-        bison \
         build-essential \
         ca-certificates \
         curl \
-        flex \
         gettext \
         git \
         python3-minimal
diff --git a/tests/docker/dockerfiles/debian10.docker b/tests/docker/dockerfiles/debian10.docker
index 0769700a41..bcdff04ddf 100644
--- a/tests/docker/dockerfiles/debian10.docker
+++ b/tests/docker/dockerfiles/debian10.docker
@@ -18,12 +18,10 @@ RUN apt update && \
     DEBIAN_FRONTEND=noninteractive eatmydata \
     apt install -y --no-install-recommends \
         bc \
-        bison \
         build-essential \
         ca-certificates \
         clang \
         dbus \
-        flex \
         gdb-multiarch \
         gettext \
         git \
diff --git a/tests/docker/dockerfiles/debian9.docker b/tests/docker/dockerfiles/debian9.docker
index 08cc970feb..0f0ebe530a 100644
--- a/tests/docker/dockerfiles/debian9.docker
+++ b/tests/docker/dockerfiles/debian9.docker
@@ -18,11 +18,9 @@ RUN apt update && \
     DEBIAN_FRONTEND=noninteractive eatmydata \
     apt install -y --no-install-recommends \
         bc \
-        bison \
         build-essential \
         ca-certificates \
         clang \
-        flex \
         gdb-multiarch \
         gettext \
         git \
diff --git a/tests/docker/dockerfiles/fedora.docker b/tests/docker/dockerfiles/fedora.docker
index 179575ecaa..92b6e11c8a 100644
--- a/tests/docker/dockerfiles/fedora.docker
+++ b/tests/docker/dockerfiles/fedora.docker
@@ -3,7 +3,6 @@ FROM fedora:30
 # Please keep this list sorted alphabetically
 ENV PACKAGES \
     bc \
-    bison \
     brlapi-devel \
     bzip2 \
     bzip2-devel \
@@ -13,7 +12,6 @@ ENV PACKAGES \
     dbus-daemon \
     device-mapper-multipath-devel \
     findutils \
-    flex \
     gcc \
     gcc-c++ \
     gettext \
diff --git a/tests/docker/dockerfiles/ubuntu.docker b/tests/docker/dockerfiles/ubuntu.docker
index eeb3b22bf2..161806e6b8 100644
--- a/tests/docker/dockerfiles/ubuntu.docker
+++ b/tests/docker/dockerfiles/ubuntu.docker
@@ -9,8 +9,8 @@
 # system won't pick up that it has changed.
 #
 
-FROM ubuntu:19.04
-ENV PACKAGES flex bison \
+FROM ubuntu:20.04
+ENV PACKAGES \
     ccache \
     clang \
     dbus \
diff --git a/tests/docker/dockerfiles/ubuntu1804.docker b/tests/docker/dockerfiles/ubuntu1804.docker
index f66b06f4cf..a10ea2850b 100644
--- a/tests/docker/dockerfiles/ubuntu1804.docker
+++ b/tests/docker/dockerfiles/ubuntu1804.docker
@@ -1,5 +1,5 @@
 FROM ubuntu:18.04
-ENV PACKAGES flex bison \
+ENV PACKAGES \
     ccache \
     clang \
     gcc \