diff --git a/CHANGELOG.md b/CHANGELOG.md
index a61ebcf7..264080e5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -42,6 +42,7 @@
   * "Sharding Runtime State Sync" row - information about various state operations which occur when sharding is enabled (replication, fetch, marge, persist).
 * [ENHANCEMENT] Added 256MB memory ballast to querier. #369
 * [ENHANCEMENT] Update gsutil command for `not healthy index found` playbook #370
+* [ENHANCEMENT] Update `etcd-operator` to latest version (see https://github.com/grafana/jsonnet-libs/pull/480). #263
 * [BUGFIX] Fixed `CortexIngesterHasNotShippedBlocks` alert false positive in case an ingester instance had ingested samples in the past, then no traffic was received for a long period and then it started receiving samples again. #308
 * [BUGFIX] Alertmanager: fixed `--alertmanager.cluster.peers` CLI flag passed to alertmanager when HA is enabled. #329
 * [BUGFIX] Fixed `CortexInconsistentRuntimeConfig` metric. #335
diff --git a/cortex/jsonnetfile.lock.json b/cortex/jsonnetfile.lock.json
index 999706bb..3751cc20 100644
--- a/cortex/jsonnetfile.lock.json
+++ b/cortex/jsonnetfile.lock.json
@@ -18,8 +18,8 @@
           "subdir": "etcd-operator"
         }
       },
-      "version": "c19a92e586a6752f11745b47f309b13f02ef7147",
-      "sum": "RbSlOsk0EBAMOfMOKPBdD0joHN6UKZqeP3zy9LjBQTE="
+      "version": "815b0364886cc7bdf6bde2cdcd424bb8cef842b8",
+      "sum": "dnKsZ5FkKBtCycNVVSYa1AMNjCLofO4VGFrmzoz4344="
     },
     {
       "source": {