diff --git a/tests/data/reply10.txt b/tests/data/reply10.txt
index 7cf888e06d..a36ffa4a58 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 f7af0c8b35..250e4eed50 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 0fca7fe69f..95ae56276a 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 adef4a0b81..c297d716ba 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 12af89c72d..fcc189c5c1 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.