diff --git a/haskell-platform.spec b/haskell-platform.spec
index 9f186be..7c4cd98 100644
--- a/haskell-platform.spec
+++ b/haskell-platform.spec
@@ -212,6 +212,7 @@ cabal-tweak-dep-ver case-insensitive '==1.2.0.5' '==%{case_insensitive_version}'
 cabal-tweak-dep-ver hashable '==1.2.3.3' '==%{hashable_version}'
 # HsColour reports 1.22
 cabal-tweak-dep-ver hscolour '==1.23' '==1.22'
+cabal-tweak-dep-ver HTTP '==4000.2.20' '==%{HTTP_version}'
 cabal-tweak-dep-ver HUnit '==1.3.0.0' '==%{HUnit_version}'
 cabal-tweak-dep-ver network-uri '==2.6.0.3' '==%{network_uri_version}'
 cabal-tweak-dep-ver parallel '==3.2.0.6' '==%{parallel_version}'