diff --git a/images/demo/Dockerfile b/images/demo/Dockerfile
index 82dcc94a56a369c17f10d476a90f0c20c3be341b..1348723e53f9e70fc3bf004ce44e81629657190a 100644
--- a/images/demo/Dockerfile
+++ b/images/demo/Dockerfile
@@ -1,3 +1,3 @@
-FROM quay.io/fedora/fedora:37
+FROM quay.io/fedora/fedora:38
 
 RUN echo "Hello world"
diff --git a/images/koolbox/Dockerfile b/images/koolbox/Dockerfile
index a85eeb04d0864babbef2c70b3394ca8094201d7e..76a61795bba98eec28b4dc8c8c95a6aac962e855 100644
--- a/images/koolbox/Dockerfile
+++ b/images/koolbox/Dockerfile
@@ -1,5 +1,5 @@
 # kubectl CLI cache
-FROM quay.io/fedora/fedora:37 as kubectl
+FROM quay.io/fedora/fedora:38 as kubectl
 
 # renovate: datasource=github-releases depName=kubernetes/kubernetes
 ARG KUBECTL_VERSION=v1.27.2
@@ -24,7 +24,7 @@ FROM ghcr.io/caarlos0/svu:v1.10.2 as svu
 FROM quay.io/git-chglog/git-chglog:0.15.4 as git-chglog
 
 # Helm CLI cache
-FROM quay.io/fedora/fedora:37 as helm
+FROM quay.io/fedora/fedora:38 as helm
 
 # renovate: datasource=github-releases depName=helm/helm
 ARG HELM_VERSION=v3.12.0
@@ -34,7 +34,7 @@ RUN curl -L "https://get.helm.sh/helm-${HELM_VERSION}-linux-amd64.tar.gz" | tar
     && install -o root -g root -m 0755 helm /usr/local/bin/helm
 
 # Flux CLI cache
-FROM quay.io/fedora/fedora:37 as flux
+FROM quay.io/fedora/fedora:38 as flux
 
 # renovate: datasource=github-releases depName=fluxcd/flux2
 ARG FLUX_VERSION=v0.41.2
@@ -44,7 +44,7 @@ RUN curl -L https://github.com/fluxcd/flux2/releases/download/${FLUX_VERSION}/fl
     && install -o root -g root -m 0755 flux /usr/local/bin/flux
 
 # kustomize CLI cache
-FROM quay.io/fedora/fedora:37 as kustomize
+FROM quay.io/fedora/fedora:38 as kustomize
 
 # renovate: datasource=github-releases depName=kubernetes-sigs/kustomize
 ARG KUSTOMIZE_VERSION=4.1.3
@@ -54,7 +54,7 @@ RUN curl -L https://github.com/kubernetes-sigs/kustomize/releases/download/kusto
     && install -o root -g root -m 0755 kustomize /usr/local/bin/kustomize
 
 # kubeval CLI cache
-FROM quay.io/fedora/fedora:37 as kubeval
+FROM quay.io/fedora/fedora:38 as kubeval
 
 # renovate: datasource=github-releases depName=instrumenta/kubeval
 ARG KUBEVAL_VERSION=v0.16.1
@@ -64,7 +64,7 @@ RUN curl -L https://github.com/instrumenta/kubeval/releases/download/${KUBEVAL_V
     && install -o root -g root -m 0755 kubeval /usr/local/bin/kubeval
 
 # SOPS CLI cache
-FROM quay.io/fedora/fedora:37 as sops
+FROM quay.io/fedora/fedora:38 as sops
 
 # renovate: datasource=github-releases depName=mozilla/sops
 ARG SOPS_VERSION=v3.7.3
@@ -74,7 +74,7 @@ RUN curl -L https://github.com/mozilla/sops/releases/download/${SOPS_VERSION}/so
     && install -o root -g root -m 0755 sops /usr/local/bin/sops
 
 # logcli cache
-FROM quay.io/fedora/fedora:37 as logcli
+FROM quay.io/fedora/fedora:38 as logcli
 
 # renovate: datasource=github-releases depName=grafana/loki
 ARG LOKI_VERSION=v2.8.2
@@ -84,7 +84,7 @@ RUN curl -L https://github.com/grafana/loki/releases/download/${LOKI_VERSION}/lo
     && install -o root -g root -m 0755 logcli /usr/local/bin/logcli
 
 # yq CLI cache
-FROM quay.io/fedora/fedora:37 as yq
+FROM quay.io/fedora/fedora:38 as yq
 
 # renovate: datasource=github-releases depName=mikefarah/yq
 ARG YQ_VERSION=v4.34.1
@@ -93,7 +93,7 @@ ENV YQ_VERSION=${YQ_VERSION}
 RUN curl -L https://github.com/mikefarah/yq/releases/download/${YQ_VERSION}/yq_linux_amd64 > ./yq \
     && install -o root -g root -m 0755 yq /usr/local/bin/yq
 
-FROM quay.io/fedora/fedora:37 as helm-docs
+FROM quay.io/fedora/fedora:38 as helm-docs
 
 # renovate: datasource=github-releases depName=norwoodj/helm-docs
 ARG HELM_DOCS_VERSION=v1.11.0
@@ -103,7 +103,7 @@ RUN curl -L https://github.com/norwoodj/helm-docs/releases/download/${HELM_DOCS_
     && install -o root -g root -m 0755 helm-docs /usr/local/bin/helm-docs
 
 # kubectl-krew CLI cache
-FROM quay.io/fedora/fedora:37 as kubectl-krew
+FROM quay.io/fedora/fedora:38 as kubectl-krew
 
 # renovate: datasource=github-releases depName=kubernetes-sigs/krew
 ARG KREW_VERSION=v0.4.3
@@ -118,7 +118,7 @@ RUN set -x; mkdir -p /opt/krew; cd "/opt/krew" && \
   mv "${KREW}" /opt/krew/krew
 
 # kubectl-krew CLI cache
-FROM quay.io/fedora/fedora:37 as mdbook
+FROM quay.io/fedora/fedora:38 as mdbook
 
 # renovate: datasource=github-releases depName=kubernetes-sigs/krew
 ARG MDBOOK_VERSION=v0.4.18
@@ -131,7 +131,7 @@ RUN curl -L "https://github.com/rust-lang/mdBook/releases/download/${MDBOOK_VERS
 FROM docker.io/hashicorp/terraform:1.4.6 AS terraform
 
 # Actual start of container build
-FROM quay.io/fedora/fedora:37
+FROM quay.io/fedora/fedora:38
 
 ARG MAINTAINER="unmaintained"
 LABEL maintainer=$MAINTAINER