diff --git a/Dockerfile.windows b/Dockerfile.windows
index 33d8eaf5d4..856dfa35bf 100644
--- a/Dockerfile.windows
+++ b/Dockerfile.windows
@@ -46,7 +46,7 @@ ARG KUBERNETES_VERSION=dev
 ENV CRICTL_VERSION="v1.27.0"
 ENV CALICO_VERSION="v3.27.3"
 ENV CNI_PLUGIN_VERSION="v1.4.0"
-ENV FLANNEL_VERSION="v0.25.0"
+ENV FLANNEL_VERSION="v0.25.1"
 ENV CNI_FLANNEL_VERSION="v1.4.0-flannel1"
 
 RUN mkdir -p rancher
diff --git a/charts/chart_versions.yaml b/charts/chart_versions.yaml
index 2592c0a0d5..e60ed43ea6 100644
--- a/charts/chart_versions.yaml
+++ b/charts/chart_versions.yaml
@@ -23,7 +23,7 @@ charts:
   - version: v4.0.2-build2024020802
     filename: /charts/rke2-multus.yaml
     bootstrap: true
-  - version: v0.25.000
+  - version: v0.25.100
     filename: /charts/rke2-flannel.yaml
     bootstrap: true
   - version: 1.7.001
diff --git a/scripts/build-images b/scripts/build-images
index 4345c995cb..4b7d4a5ba5 100755
--- a/scripts/build-images
+++ b/scripts/build-images
@@ -99,7 +99,7 @@ xargs -n1 -t docker image pull --quiet << EOF > build/images-harvester.txt
 EOF
 
 xargs -n1 -t docker image pull --quiet << EOF > build/images-flannel.txt
-    ${REGISTRY}/rancher/hardened-flannel:v0.25.0-build20240410
+    ${REGISTRY}/rancher/hardened-flannel:v0.25.1-build20240412
     ${REGISTRY}/rancher/hardened-cni-plugins:v1.4.1-build20240325
 EOF
 fi