diff --git a/.github/workflows/build-publish-containers.yml b/.github/workflows/build-publish-containers.yml
index a7c9b607..a804d02d 100644
--- a/.github/workflows/build-publish-containers.yml
+++ b/.github/workflows/build-publish-containers.yml
@@ -32,11 +32,11 @@ jobs:
       contents: read
     strategy:
       matrix:
-        tag: ['client:centos7', 'build-node:debian11', 'build-node:debian-sid']
+        tag: ['client:rocky8', 'build-node:debian11', 'build-node:debian-sid']
         platform: [amd64, arm64, riscv64]
         exclude:
           # exclude images that don't support RISC-V
-          - tag: client:centos7
+          - tag: client:rocky8
             platform: riscv64
           - tag: build-node:debian11
             platform: riscv64
@@ -97,7 +97,7 @@ jobs:
       contents: read
     strategy:
       matrix:
-        tag: ['client:centos7', 'build-node:debian11', 'build-node:debian-sid']
+        tag: ['client:rocky8', 'build-node:debian11', 'build-node:debian-sid']
     steps:
       - name: Login to GitHub Container Registry
         if: github.event_name != 'pull_request'
diff --git a/.github/workflows/build-test-release-client-packages.yml b/.github/workflows/build-test-release-client-packages.yml
index 803f0f9d..c21b370f 100644
--- a/.github/workflows/build-test-release-client-packages.yml
+++ b/.github/workflows/build-test-release-client-packages.yml
@@ -162,15 +162,16 @@ jobs:
     needs: build-linux-packages
     runs-on: ubuntu-latest
     container:
-      image: centos:centos7
+      image: rockylinux:8
       options: --device /dev/fuse --privileged
 
     steps:
       - name: Download and install CVMFS client
-        run: yum install -y https://ecsft.cern.ch/dist/cvmfs/cvmfs-release/cvmfs-release-latest.noarch.rpm && yum-config-manager --enable cernvm-config
-
-      - name: Install CVMFS client
-        run: yum install -y cvmfs cvmfs-config-none
+        run: |
+          dnf install -y https://ecsft.cern.ch/dist/cvmfs/cvmfs-release/cvmfs-release-latest.noarch.rpm
+          dnf install -y 'dnf-command(config-manager)'
+          dnf config-manager --enable cernvm-config
+          dnf install -y cvmfs cvmfs-config-none
 
       - name: Download cvmfs-config-eessi package
         uses: actions/download-artifact@9782bd6a9848b53b110e712e20e42d89988822b7 # v3.0.1
diff --git a/.github/workflows/test-containers.yml b/.github/workflows/test-containers.yml
index 5262b5ca..adb2fbd9 100644
--- a/.github/workflows/test-containers.yml
+++ b/.github/workflows/test-containers.yml
@@ -11,4 +11,4 @@ jobs:
     steps:
       - uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 # v3.1.0
       - name: Build the Docker image
-        run: docker build . --file containers/Dockerfile.EESSI-client-centos7
+        run: docker build . --file containers/Dockerfile.EESSI-client-rocky8
diff --git a/containers/Dockerfile.EESSI-build-node-debian-sid b/containers/Dockerfile.EESSI-build-node-debian-sid
index 864919e5..5050e18e 100644
--- a/containers/Dockerfile.EESSI-build-node-debian-sid
+++ b/containers/Dockerfile.EESSI-build-node-debian-sid
@@ -1,4 +1,4 @@
-ARG cvmfsversion=2.11.2
+ARG cvmfsversion=2.11.5
 ARG archspecversion=0.2.2
 ARG awscliversion=1.32.22
 ARG fuseoverlayfsversion=1.10
diff --git a/containers/Dockerfile.EESSI-build-node-debian11 b/containers/Dockerfile.EESSI-build-node-debian11
index 7b20a8e8..26efc752 100644
--- a/containers/Dockerfile.EESSI-build-node-debian11
+++ b/containers/Dockerfile.EESSI-build-node-debian11
@@ -1,4 +1,4 @@
-ARG cvmfsversion=2.11.2
+ARG cvmfsversion=2.11.5
 ARG awscliversion=1.32.22
 ARG fuseoverlayfsversion=1.10
 
diff --git a/containers/Dockerfile.EESSI-client-centos7 b/containers/Dockerfile.EESSI-client-rocky8
similarity index 71%
rename from containers/Dockerfile.EESSI-client-centos7
rename to containers/Dockerfile.EESSI-client-rocky8
index 4254c465..6e66e5e3 100644
--- a/containers/Dockerfile.EESSI-client-centos7
+++ b/containers/Dockerfile.EESSI-client-rocky8
@@ -1,15 +1,15 @@
-ARG cvmfsversion=2.11.2
+ARG cvmfsversion=2.11.5
 # Stick to old version of fuse-overlayfs due to issues with newer versions
 # (cfr. https://github.com/containers/fuse-overlayfs/issues/232)
 ARG fuseoverlayfsversion=1.10
 
-FROM centos:7 AS prepare-rpm
+FROM rockylinux:8 AS prepare-rpm
 ARG cvmfsversion
 COPY ./containers/build-or-download-cvmfs-rpms.sh /build-or-download-cvmfs-rpms.sh
 RUN sh /build-or-download-cvmfs-rpms.sh ${cvmfsversion}
 
 
-FROM centos:7 AS build-fuse-overlayfs
+FROM rockylinux:8 AS build-fuse-overlayfs
 ARG fuseoverlayfsversion
 RUN yum install -y wget fuse3-devel autoconf automake gcc make tar
 RUN wget https://github.com/containers/fuse-overlayfs/archive/refs/tags/v${fuseoverlayfsversion}.tar.gz \
@@ -18,17 +18,18 @@ RUN wget https://github.com/containers/fuse-overlayfs/archive/refs/tags/v${fuseo
   && ./autogen.sh && ./configure && make && make install
 
 
-FROM centos:7
+FROM rockylinux:8
 ARG cvmfsversion
 
 COPY --from=prepare-rpm /root/rpmbuild/RPMS /root/rpmbuild/RPMS
 COPY --from=build-fuse-overlayfs /usr/local/bin/fuse-overlayfs /usr/local/bin/fuse-overlayfs
 
 RUN yum install -y sudo vim openssh-clients lsof strace
-RUN yum install -y /root/rpmbuild/RPMS/$(uname -m)/cvmfs-${cvmfsversion}-1.el7.$(uname -m).rpm \
-                   /root/rpmbuild/RPMS/$(uname -m)/cvmfs-fuse3-${cvmfsversion}-1.el7.$(uname -m).rpm \
-                   /root/rpmbuild/RPMS/$(uname -m)/cvmfs-libs-${cvmfsversion}-1.el7.$(uname -m).rpm \
-                   http://ecsft.cern.ch/dist/cvmfs/cvmfs-config/cvmfs-config-default-latest.noarch.rpm
+RUN elversion="$(rpm -q --queryformat '%{RELEASE}' rpm | cut -d '.' -f 2)" \
+  && yum install -y /root/rpmbuild/RPMS/$(uname -m)/cvmfs-${cvmfsversion}-1.${elversion}.$(uname -m).rpm \
+                    /root/rpmbuild/RPMS/$(uname -m)/cvmfs-fuse3-${cvmfsversion}-1.${elversion}.$(uname -m).rpm \
+                    /root/rpmbuild/RPMS/$(uname -m)/cvmfs-libs-${cvmfsversion}-1.${elversion}.$(uname -m).rpm \
+                    http://ecsft.cern.ch/dist/cvmfs/cvmfs-config/cvmfs-config-default-latest.noarch.rpm
 RUN yum install -y https://github.com/EESSI/filesystem-layer/releases/download/latest/cvmfs-config-eessi-latest.noarch.rpm
 
 # download binary for specific version of fuse-overlayfs
diff --git a/containers/build-or-download-cvmfs-debs.sh b/containers/build-or-download-cvmfs-debs.sh
index cd81bee9..808ebbec 100644
--- a/containers/build-or-download-cvmfs-debs.sh
+++ b/containers/build-or-download-cvmfs-debs.sh
@@ -44,6 +44,25 @@ then
     else
         apt-get install -y valgrind
     fi
+
+    # gcc 14 fix for CVMFS's dependency pacparser, see
+    # https://github.com/manugarg/pacparser/issues/194
+    if gcc --version | grep -q "^gcc.*14"; then
+cat << EOF > externals/pacparser/src/fix_gcc14.patch
+--- src/spidermonkey/js/src/jsapi.c
++++ src/spidermonkey/js/src/jsapi.c
+@@ -93,7 +93,7 @@
+ #ifdef HAVE_VA_LIST_AS_ARRAY
+ #define JS_ADDRESSOF_VA_LIST(ap) ((va_list *)(ap))
+ #else
+-#define JS_ADDRESSOF_VA_LIST(ap) (&(ap))
++#define JS_ADDRESSOF_VA_LIST(ap) ((va_list *)(&(ap)))
+ #endif
+ 
+ #if defined(JS_PARANOID_REQUEST) && defined(JS_THREADSAFE)
+EOF
+    fi
+
     cd ci/cvmfs
     # make sure the cvmfs package also uses debian 13 for debian sid
     [ $release = "13" ] && sed -i "s@\$(lsb_release -sr)@13@" ./deb.sh && sed -i "s/focal/trixie/" ./deb.sh
diff --git a/containers/build-or-download-cvmfs-rpms.sh b/containers/build-or-download-cvmfs-rpms.sh
index a4cbcbf3..5d4f5b09 100644
--- a/containers/build-or-download-cvmfs-rpms.sh
+++ b/containers/build-or-download-cvmfs-rpms.sh
@@ -2,6 +2,7 @@ cvmfsversion=$1
 arch=$(uname -m)
 
 yum install -y wget
+elversion="$(rpm -q --queryformat '%{RELEASE}' rpm | cut -d '.' -f 2)"
 if [ "$arch" = "riscv64" ]
 then
     yum install -y epel-release
@@ -10,11 +11,11 @@ then
     update-alternatives --install /usr/bin/python python /usr/bin/python3 1
     update-alternatives --install /usr/bin/python python /usr/bin/python2 2
     update-alternatives --set python /usr/bin/python2
-    wget https://ecsft.cern.ch/dist/cvmfs/cvmfs-${cvmfsversion}/cvmfs-${cvmfsversion}-1.el7.src.rpm && rpmbuild --rebuild cvmfs-${cvmfsversion}-1.el7.src.rpm
+    wget https://ecsft.cern.ch/dist/cvmfs/cvmfs-${cvmfsversion}/cvmfs-${cvmfsversion}-1.${elversion}.src.rpm && rpmbuild --rebuild cvmfs-${cvmfsversion}-1.${elversion}.src.rpm
 else
     mkdir -p /root/rpmbuild/RPMS/${arch}
     cd /root/rpmbuild/RPMS/${arch}
-    wget https://ecsft.cern.ch/dist/cvmfs/cvmfs-${cvmfsversion}/cvmfs-${cvmfsversion}-1.el7.${arch}.rpm
-    wget https://ecsft.cern.ch/dist/cvmfs/cvmfs-${cvmfsversion}/cvmfs-fuse3-${cvmfsversion}-1.el7.${arch}.rpm
-    wget https://ecsft.cern.ch/dist/cvmfs/cvmfs-${cvmfsversion}/cvmfs-libs-${cvmfsversion}-1.el7.${arch}.rpm
+    wget https://ecsft.cern.ch/dist/cvmfs/cvmfs-${cvmfsversion}/cvmfs-${cvmfsversion}-1.${elversion}.${arch}.rpm
+    wget https://ecsft.cern.ch/dist/cvmfs/cvmfs-${cvmfsversion}/cvmfs-fuse3-${cvmfsversion}-1.${elversion}.${arch}.rpm
+    wget https://ecsft.cern.ch/dist/cvmfs/cvmfs-${cvmfsversion}/cvmfs-libs-${cvmfsversion}-1.${elversion}.${arch}.rpm
 fi