diff --git a/cabal.project b/cabal.project
index cf3bedeeaa..41e26c6050 100644
--- a/cabal.project
+++ b/cabal.project
@@ -24,7 +24,7 @@ package ghcide
 
 write-ghc-environment-files: never
 
-index-state: 2021-02-19T20:48:27Z
+index-state: 2021-03-02T21:23:14Z
 
 allow-newer:
 	active:base,
diff --git a/ghcide/ghcide.cabal b/ghcide/ghcide.cabal
index c9d36ae806..137271bad5 100644
--- a/ghcide/ghcide.cabal
+++ b/ghcide/ghcide.cabal
@@ -55,7 +55,7 @@ library
         fingertree,
         ghc-exactprint,
         Glob,
-        haddock-library >= 1.8,
+        haddock-library >= 1.8 && < 1.10,
         hashable,
         hie-compat ^>= 0.1.0.0,
         hls-plugin-api ^>= 1.0.0.0,