diff --git a/tests/docker/dockerfiles/centos8.docker b/tests/docker/dockerfiles/centos8.docker
index 585dfad9be..a589142114 100644
--- a/tests/docker/dockerfiles/centos8.docker
+++ b/tests/docker/dockerfiles/centos8.docker
@@ -18,6 +18,7 @@ ENV PACKAGES \
     lzo-devel \
     make \
     mesa-libEGL-devel \
+    nmap-ncat \
     nettle-devel \
     ninja-build \
     perl-Test-Harness \
diff --git a/tests/docker/dockerfiles/debian-amd64.docker b/tests/docker/dockerfiles/debian-amd64.docker
index 314c6bae83..55075d9fce 100644
--- a/tests/docker/dockerfiles/debian-amd64.docker
+++ b/tests/docker/dockerfiles/debian-amd64.docker
@@ -23,6 +23,9 @@ RUN apt update && \
         libsnappy-dev \
         libvte-dev \
         netcat-openbsd \
+        openssh-client \
+        python3-numpy \
+        python3-opencv \
         python3-venv
 
 # virgl
diff --git a/tests/docker/dockerfiles/fedora.docker b/tests/docker/dockerfiles/fedora.docker
index ac79d95418..0b5053f2d0 100644
--- a/tests/docker/dockerfiles/fedora.docker
+++ b/tests/docker/dockerfiles/fedora.docker
@@ -73,6 +73,7 @@ ENV PACKAGES \
     mingw64-pixman \
     mingw64-pkg-config \
     mingw64-SDL2 \
+    nmap-ncat \
     ncurses-devel \
     nettle-devel \
     ninja-build \
diff --git a/tests/docker/dockerfiles/ubuntu2004.docker b/tests/docker/dockerfiles/ubuntu2004.docker
index 17b37cda38..355bbb3c63 100644
--- a/tests/docker/dockerfiles/ubuntu2004.docker
+++ b/tests/docker/dockerfiles/ubuntu2004.docker
@@ -47,6 +47,7 @@ ENV PACKAGES flex bison \
     libxen-dev \
     libzstd-dev \
     make \
+    netcat-openbsd \
     ninja-build \
     python3-numpy \
     python3-opencv \