diff --git a/etc/kayobe/seed.yml b/etc/kayobe/seed.yml
index ae39034998..d5f7c00fe5 100644
--- a/etc/kayobe/seed.yml
+++ b/etc/kayobe/seed.yml
@@ -139,9 +139,9 @@ seed_squid_container_enabled: false
 
 seed_squid_container:
   squid:
-    image: ghcr.io/stackhpc/docker-squid
+    image: ubuntu/squid
     pre: "{{ kayobe_config_path }}/containers/squid_proxy/pre.yml"
-    tag: "6.10"
+    tag: "7.2-26.04_edge"
     network_mode: host
     volumes:
       - squid_spool:/var/spool/squid
diff --git a/releasenotes/notes/ubuntu-squid-container-75698bf1b9535163.yaml b/releasenotes/notes/ubuntu-squid-container-75698bf1b9535163.yaml
new file mode 100644
index 0000000000..32cd0a560f
--- /dev/null
+++ b/releasenotes/notes/ubuntu-squid-container-75698bf1b9535163.yaml
@@ -0,0 +1,7 @@
+---
+features:
+  - |
+    The Squid proxy container has been switched from a StackHPC-maintained
+    custom image, to a public image maintained by Canonical. The version of
+    Squid is bumped from 6.10 to 7.2. The old image was based on Rocky Linux 10,
+    and the new one is based on Ubuntu 26.04.