diff --git a/config/config.yaml b/config/config.yaml
index 0e006481b..37fa800bd 100644
--- a/config/config.yaml
+++ b/config/config.yaml
@@ -248,10 +248,6 @@ clouds:
           frontend:
             cosmosDB:
               private: false
-          svc:
-            istio:
-              targetVersion: "asm-1-23"
-              versions: "asm-1-22,asm-1-23"
       cs-pr:
         # this is the cluster service PR check and full cycle test environment
         defaults:
@@ -261,9 +257,6 @@ clouds:
             userAgentPool:
               minCount: 2
               maxCount: 12
-            istio:
-              targetVersion: "asm-1-23"
-              versions: "asm-1-22,asm-1-23"
           mgmt:
             # MC AKS nodepools - big enough for multiple HCPs
             userAgentPool:
diff --git a/config/public-cloud-cs-pr.json b/config/public-cloud-cs-pr.json
index f597fb074..5090818b7 100644
--- a/config/public-cloud-cs-pr.json
+++ b/config/public-cloud-cs-pr.json
@@ -181,7 +181,7 @@
       "istioctlVersion": "1.23.1",
       "tag": "prod-stable",
       "targetVersion": "asm-1-23",
-      "versions": "asm-1-22,asm-1-23"
+      "versions": "asm-1-23"
     },
     "rg": "hcp-underlay-cspr-svc",
     "subscription": "ARO Hosted Control Planes (EA Subscription 1)",
diff --git a/config/public-cloud-dev.json b/config/public-cloud-dev.json
index 72f36985a..262e3b1c3 100644
--- a/config/public-cloud-dev.json
+++ b/config/public-cloud-dev.json
@@ -181,7 +181,7 @@
       "istioctlVersion": "1.23.1",
       "tag": "prod-stable",
       "targetVersion": "asm-1-23",
-      "versions": "asm-1-22,asm-1-23"
+      "versions": "asm-1-23"
     },
     "rg": "hcp-underlay-dev-svc",
     "subscription": "ARO Hosted Control Planes (EA Subscription 1)",