diff --git a/docs/user-guides/caching.md b/docs/user-guides/caching.md
index 9db1779f..487bdb46 100644
--- a/docs/user-guides/caching.md
+++ b/docs/user-guides/caching.md
@@ -109,7 +109,7 @@ spec:
   metadata:
     "cached-metadata":
       http:
-        url: http://talker-api.default.svc.cluster.local:3000/metadata/{context.request.http.path}
+        url: "http://talker-api.default.svc.cluster.local:3000/metadata/{context.request.http.path}"
       cache:
         key:
           selector: context.request.http.path
diff --git a/docs/user-guides/deny-with-redirect-to-login.md b/docs/user-guides/deny-with-redirect-to-login.md
index 3c5d85b5..583488cb 100644
--- a/docs/user-guides/deny-with-redirect-to-login.md
+++ b/docs/user-guides/deny-with-redirect-to-login.md
@@ -114,7 +114,7 @@ spec:
       code: 302
       headers:
         "Location":
-          selector: http://matrix-quotes-authorino.127.0.0.1.nip.io:8000/login.html?redirect_to={context.request.http.path}
+          selector: "http://matrix-quotes-authorino.127.0.0.1.nip.io:8000/login.html?redirect_to={context.request.http.path}"
 EOF
 ```
 
@@ -216,7 +216,7 @@ spec:
       code: 302
       headers:
         "Location":
-          selector: http://keycloak:8080/auth/realms/kuadrant/protocol/openid-connect/auth?client_id=matrix-quotes&redirect_uri=http://matrix-quotes-authorino.127.0.0.1.nip.io:8000/auth?redirect_to={context.request.http.path}&scope=openid&response_type=code
+          selector: "http://keycloak:8080/auth/realms/kuadrant/protocol/openid-connect/auth?client_id=matrix-quotes&redirect_uri=http://matrix-quotes-authorino.127.0.0.1.nip.io:8000/auth?redirect_to={context.request.http.path}&scope=openid&response_type=code"
 EOF
 ```
 
diff --git a/docs/user-guides/envoy-jwt-authn-and-authorino.md b/docs/user-guides/envoy-jwt-authn-and-authorino.md
index 3e84eabf..146c341a 100644
--- a/docs/user-guides/envoy-jwt-authn-and-authorino.md
+++ b/docs/user-guides/envoy-jwt-authn-and-authorino.md
@@ -310,7 +310,7 @@ spec:
   metadata:
     "geoinfo":
       http:
-        url: http://ip-location.default.svc.cluster.local:3000/{context.request.http.headers.x-forwarded-for.@extract:{"sep":","}}
+        url: 'http://ip-location.default.svc.cluster.local:3000/{context.request.http.headers.x-forwarded-for.@extract:{"sep":","}}'
         headers:
           "Accept":
             value: application/json
diff --git a/docs/user-guides/external-metadata.md b/docs/user-guides/external-metadata.md
index 8a8a0ba9..6b0a7b42 100644
--- a/docs/user-guides/external-metadata.md
+++ b/docs/user-guides/external-metadata.md
@@ -110,7 +110,7 @@ spec:
   metadata:
     "geo":
       http:
-        url: http://ip-api.com/json/{context.request.http.headers.x-forwarded-for.@extract:{"sep":","}}?fields=countryCode
+        url: 'http://ip-api.com/json/{context.request.http.headers.x-forwarded-for.@extract:{"sep":","}}?fields=countryCode'
         headers:
           "Accept":
             value: application/json