diff --git a/filebrowser/Containerfile b/filebrowser/Containerfile
index 40a7775..59d3f4a 100644
--- a/filebrowser/Containerfile
+++ b/filebrowser/Containerfile
@@ -4,6 +4,7 @@ FROM registry.fedoraproject.org/fedora:40
 
 # Remove unneeded packages and remove all SUID/SGID binaries
 RUN rm /etc/dnf/protected.d/sudo.conf && \
+    sed -i "s/enabled=1/enabled=0/" /etc/yum.repos.d/fedora-cisco-openh264.repo && \
     dnf -y remove pam shadow-utils sudo && \
     dnf -y update && \
     dnf clean all && \
diff --git a/libvirtd/Containerfile b/libvirtd/Containerfile
index 64c14be..b64c1d1 100644
--- a/libvirtd/Containerfile
+++ b/libvirtd/Containerfile
@@ -1,6 +1,7 @@
 FROM registry.fedoraproject.org/fedora:40
 
-RUN dnf -y update && \
+RUN sed -i "s/enabled=1/enabled=0/" /etc/yum.repos.d/fedora-cisco-openh264.repo && \
+    dnf -y update && \
     dnf -y install --nodocs \
       libvirt-daemon \
       libvirt-daemon-config-network \
diff --git a/nginx/Containerfile b/nginx/Containerfile
index b83122a..ff58e04 100644
--- a/nginx/Containerfile
+++ b/nginx/Containerfile
@@ -2,6 +2,7 @@ FROM registry.fedoraproject.org/fedora:40
 
 # Install nginx, remove unneeded packages and remove all SUID/SGID binaries
 RUN rm /etc/dnf/protected.d/sudo.conf && \
+    sed -i "s/enabled=1/enabled=0/" /etc/yum.repos.d/fedora-cisco-openh264.repo && \
     dnf -y remove pam sudo && \
     dnf -y update && \
     dnf -y install nginx && \
diff --git a/php-fpm-ttrss/Containerfile b/php-fpm-ttrss/Containerfile
index 5dce4c0..bca1230 100644
--- a/php-fpm-ttrss/Containerfile
+++ b/php-fpm-ttrss/Containerfile
@@ -2,6 +2,7 @@ FROM registry.fedoraproject.org/fedora:40
 
 # Install php and required modules, remove unneeded packages and remove all SUID/SGID binaries
 RUN rm /etc/dnf/protected.d/sudo.conf && \
+    sed -i "s/enabled=1/enabled=0/" /etc/yum.repos.d/fedora-cisco-openh264.repo && \
     dnf -y remove pam sudo && \
     dnf -y update && \
     dnf -y install git php-cli php-fpm \
diff --git a/quasselcore/Containerfile b/quasselcore/Containerfile
index 447ea5f..2f9e95a 100644
--- a/quasselcore/Containerfile
+++ b/quasselcore/Containerfile
@@ -2,6 +2,7 @@ FROM registry.fedoraproject.org/fedora:40
 
 # Install quasselcore, remove unneeded packages and remove all SUID/SGID binaries
 RUN rm /etc/dnf/protected.d/sudo.conf && \
+    sed -i "s/enabled=1/enabled=0/" /etc/yum.repos.d/fedora-cisco-openh264.repo && \
     dnf -y remove pam sudo && \
     dnf -y update && \
     dnf -y install quassel-core && \
diff --git a/toolbox-kdedev/Containerfile b/toolbox-kdedev/Containerfile
index f9d0524..b1ed215 100644
--- a/toolbox-kdedev/Containerfile
+++ b/toolbox-kdedev/Containerfile
@@ -6,7 +6,8 @@ FROM registry.fedoraproject.org/fedora-toolbox:40
 # - Install build deps for Discover development. This will ignore errors
 #   encountered during flatpak installation.
 # - Remove mlocate
-RUN dnf -y distrosync \
+RUN sed -i "s/enabled=1/enabled=0/" /etc/yum.repos.d/fedora-cisco-openh264.repo \
+    && dnf -y distrosync \
     && dnf -y install \
       bind-utils \
       fd-find \
diff --git a/toolbox-root/Containerfile b/toolbox-root/Containerfile
index 90ccfc8..ea93e16 100644
--- a/toolbox-root/Containerfile
+++ b/toolbox-root/Containerfile
@@ -1,6 +1,7 @@
 FROM registry.fedoraproject.org/fedora:40 AS builder
 
-RUN dnf update -y && \
+RUN sed -i "s/enabled=1/enabled=0/" /etc/yum.repos.d/fedora-cisco-openh264.repo && \
+    dnf update -y && \
     dnf install -y rust cargo && \
     cargo install bandwhich
 RUN mv /root/.cargo/bin/bandwhich /
@@ -12,7 +13,8 @@ COPY --from=builder /bandwhich /usr/local/bin/bandwhich
 
 # - Only install tools that need root access
 # - Ensure that mlocate is removed
-RUN dnf -y distrosync && \
+RUN sed -i "s/enabled=1/enabled=0/" /etc/yum.repos.d/fedora-cisco-openh264.repo && \
+    dnf -y distrosync && \
     dnf -y install \
       bwm-ng \
       htop \
diff --git a/toolbox-texlive/Containerfile b/toolbox-texlive/Containerfile
index 00befb3..2bfd50a 100644
--- a/toolbox-texlive/Containerfile
+++ b/toolbox-texlive/Containerfile
@@ -3,7 +3,8 @@ FROM registry.fedoraproject.org/fedora-toolbox:40
 # - Install common development tools
 # - Install texlive packages
 # - Remove mlocate
-RUN dnf -y distrosync && \
+RUN sed -i "s/enabled=1/enabled=0/" /etc/yum.repos.d/fedora-cisco-openh264.repo && \
+    dnf -y distrosync && \
     dnf -y install \
       ImageMagick \
       brotli \
diff --git a/toolbox/Containerfile b/toolbox/Containerfile
index cffdafe..70b9b7f 100644
--- a/toolbox/Containerfile
+++ b/toolbox/Containerfile
@@ -11,7 +11,8 @@ FROM registry.fedoraproject.org/fedora-toolbox:40
 # - Install virt-manager and virt-install
 # - Install Cloud command line tools (disabled)
 # - Remove mlocate
-RUN dnf -y distrosync \
+RUN sed -i "s/enabled=1/enabled=0/" /etc/yum.repos.d/fedora-cisco-openh264.repo \
+    && dnf -y distrosync \
     && dnf -y install \
       bind-utils \
       fd-find \
diff --git a/unbound/Containerfile b/unbound/Containerfile
index 346c5ad..451e64b 100644
--- a/unbound/Containerfile
+++ b/unbound/Containerfile
@@ -2,6 +2,7 @@ FROM registry.fedoraproject.org/fedora:40
 
 # Install unbound, remove unneeded packages and remove all SUID/SGID binaries
 RUN rm /etc/dnf/protected.d/sudo.conf && \
+    sed -i "s/enabled=1/enabled=0/" /etc/yum.repos.d/fedora-cisco-openh264.repo && \
     dnf -y remove pam sudo && \
     dnf -y update && \
     dnf -y install unbound && \