diff --git a/packages/whook-swagger-ui/src/__snapshots__/index.test.js.snap b/packages/whook-swagger-ui/src/__snapshots__/index.test.js.snap
index 0fe30b49..034c548f 100644
--- a/packages/whook-swagger-ui/src/__snapshots__/index.test.js.snap
+++ b/packages/whook-swagger-ui/src/__snapshots__/index.test.js.snap
@@ -234,7 +234,7 @@ Object {
     "date": undefined,
     "etag": undefined,
     "last-modified": undefined,
-    "server": "ecstatic-3.3.0",
+    "server": undefined,
   },
   "logErrorCalls": Array [
     Array [
@@ -343,6 +343,9 @@ Object {
     "connection": "close",
     "content-type": "application/json",
     "date": undefined,
+    "etag": undefined,
+    "last-modified": undefined,
+    "server": undefined,
     "transaction-id": "0",
     "transfer-encoding": "chunked",
   },
diff --git a/packages/whook-swagger-ui/src/index.test.js b/packages/whook-swagger-ui/src/index.test.js
index 90b33aec..be57d8cb 100644
--- a/packages/whook-swagger-ui/src/index.test.js
+++ b/packages/whook-swagger-ui/src/index.test.js
@@ -112,6 +112,9 @@ describe('wrapHTTPRouterWithSwaggerUI', () => {
         ...headers,
         // Erasing the Date header that may be added by Axios :/
         date: {}.undef,
+        etag: {}.undef,
+        'last-modified': {}.undef,
+        server: {}.undef,
       },
       data,
 
@@ -154,6 +157,7 @@ describe('wrapHTTPRouterWithSwaggerUI', () => {
         date: {}.undef,
         etag: {}.undef,
         'last-modified': {}.undef,
+        server: {}.undef,
       },
       data,