diff --git a/a2a/business_agent/src/business_agent/data/agent_card.json b/a2a/business_agent/src/business_agent/data/agent_card.json
index 2b2eae3b..b562638f 100644
--- a/a2a/business_agent/src/business_agent/data/agent_card.json
+++ b/a2a/business_agent/src/business_agent/data/agent_card.json
@@ -9,18 +9,18 @@
           "capabilities": [
             {
               "version": "2026-01-23",
-              "spec": "https://ucp.dev/2026-01-23/specification/shopping/checkout",
+              "spec": "https://ucp.dev/2026-01-23/specification/checkout",
               "schema": "https://ucp.dev/2026-01-23/schemas/shopping/checkout.json"
             },
             {
               "version": "2026-01-23",
-              "spec": "https://ucp.dev/2026-01-23/specification/shopping/fulfillment",
+              "spec": "https://ucp.dev/2026-01-23/specification/fulfillment",
               "schema": "https://ucp.dev/2026-01-23/schemas/shopping/fulfillment.json",
               "extends": "dev.ucp.shopping.checkout"
             },
             {
               "version": "2026-01-23",
-              "spec": "https://ucp.dev/2026-01-23/specification/shopping/discount",
+              "spec": "https://ucp.dev/2026-01-23/specification/discount",
               "schema": "https://ucp.dev/2026-01-23/schemas/shopping/discount.json",
               "extends": "dev.ucp.shopping.checkout"
             }
diff --git a/a2a/business_agent/src/business_agent/data/ucp.json b/a2a/business_agent/src/business_agent/data/ucp.json
index 0517fad1..d1f85c83 100644
--- a/a2a/business_agent/src/business_agent/data/ucp.json
+++ b/a2a/business_agent/src/business_agent/data/ucp.json
@@ -4,7 +4,7 @@
     "services": {
       "dev.ucp.shopping": {
         "version": "2026-01-23",
-        "spec": "https://ucp.dev/2026-01-23/specification/shopping",
+        "spec": "https://ucp.dev/2026-01-23/specification/overview",
         "a2a": {
           "endpoint": "http://localhost:10999/.well-known/agent-card.json"
         }
@@ -13,12 +13,12 @@
     "capabilities": [
       {
         "version": "2026-01-23",
-        "spec": "https://ucp.dev/2026-01-23/specification/shopping/checkout",
+        "spec": "https://ucp.dev/2026-01-23/specification/checkout",
         "schema": "https://ucp.dev/2026-01-23/schemas/shopping/checkout.json"
       },
       {
         "version": "2026-01-23",
-        "spec": "https://ucp.dev/2026-01-23/specification/shopping/fulfillment",
+        "spec": "https://ucp.dev/2026-01-23/specification/fulfillment",
         "schema": "https://ucp.dev/2026-01-23/schemas/shopping/fulfillment.json",
         "extends": "dev.ucp.shopping.checkout"
       }
diff --git a/a2a/chat-client/profile/agent_profile.json b/a2a/chat-client/profile/agent_profile.json
index 651c7905..2fef4576 100644
--- a/a2a/chat-client/profile/agent_profile.json
+++ b/a2a/chat-client/profile/agent_profile.json
@@ -4,18 +4,18 @@
     "capabilities": [
       {
         "version": "2026-01-23",
-        "spec": "https://ucp.dev/2026-01-23/specification/shopping/checkout",
+        "spec": "https://ucp.dev/2026-01-23/specification/checkout",
         "schema": "https://ucp.dev/2026-01-23/schemas/shopping/checkout.json"
       },
       {
         "version": "2026-01-23",
-        "spec": "https://ucp.dev/2026-01-23/specification/shopping/fulfillment",
+        "spec": "https://ucp.dev/2026-01-23/specification/fulfillment",
         "schema": "https://ucp.dev/2026-01-23/schemas/shopping/fulfillment.json",
         "extends": "dev.ucp.shopping.checkout"
       },
       {
         "version": "2026-01-23",
-        "spec": "https://ucp.dev/2026-01-23/specification/shopping/discount",
+        "spec": "https://ucp.dev/2026-01-23/specification/discount",
         "schema": "https://ucp.dev/2026-01-23/schemas/shopping/discount.json",
         "extends": "dev.ucp.shopping.checkout"
       },