diff --git a/tests/data/reply10.txt b/tests/data/reply10.txt
index 7cf888e06d2bd085b6d5a3dcfbc284f3c707c858..a36ffa4a58e8009c9262a22b6f026b50b867d38a 100644
--- a/tests/data/reply10.txt
+++ b/tests/data/reply10.txt
@@ -1,4 +1,4 @@
-HTTP/1.1 200 OK
+HTTP/1.0 200 OK
 Date: Thu, 09 Nov 2010 14:49:00 GMT
 Server: test-server/fake
 
diff --git a/tests/data/reply24.txt b/tests/data/reply24.txt
index f7af0c8b35fb5dbcb684e265c61fc2cbef2c4cf3..250e4eed503e0b32ac54913a154786c568165f6c 100644
--- a/tests/data/reply24.txt
+++ b/tests/data/reply24.txt
@@ -1,4 +1,4 @@
-HTTP/1.1 404 BAD BOY
+HTTP/1.0 404 BAD BOY
 Content-Type: text/html
 
 This silly page doesn't reaaaaaly exist so you should not get it.
diff --git a/tests/data/reply3.txt b/tests/data/reply3.txt
index 0fca7fe69fe237a156e6f5a1ffa9341498aa84ca..95ae56276a4e5d4ce43336b01499767c56909af9 100644
--- a/tests/data/reply3.txt
+++ b/tests/data/reply3.txt
@@ -1,4 +1,4 @@
-HTTP/1.1 200 OK
+HTTP/1.0 200 OK
 Server: test-server/fake
 Content-Type: text/html
 Content-Length: 0
diff --git a/tests/data/stdout18.txt b/tests/data/stdout18.txt
index adef4a0b81d74ca771907caee96aba5041547f3d..c297d716ba4f0052f995286389d18ed7ad6dd77e 100644
--- a/tests/data/stdout18.txt
+++ b/tests/data/stdout18.txt
@@ -1,5 +1,5 @@
 --_curl_--127.0.0.1:8999/3
-HTTP/1.1 200 OK
+HTTP/1.0 200 OK
 Server: test-server/fake
 Content-Type: text/html
 Content-Length: 0
@@ -8,7 +8,7 @@ this is data even though Content-Length is set to zero
 
 
 --_curl_--127.0.0.1:8999/10
-HTTP/1.1 200 OK
+HTTP/1.0 200 OK
 Date: Thu, 09 Nov 2010 14:49:00 GMT
 Server: test-server/fake
 
diff --git a/tests/data/stdout27.txt b/tests/data/stdout27.txt
index 12af89c72d8a4d65bfba27a8f0099540109ca151..fcc189c5c19ae93ee1e230f49dc6ad17bc116ee4 100644
--- a/tests/data/stdout27.txt
+++ b/tests/data/stdout27.txt
@@ -5,7 +5,7 @@ Content-Length: 32
 Connection: close
 
 Redirect to the same URL again!
-HTTP/1.1 404 BAD BOY
+HTTP/1.0 404 BAD BOY
 Content-Type: text/html
 
 This silly page doesn't reaaaaaly exist so you should not get it.