diff --git a/lsp-test.cabal b/lsp-test.cabal
--- a/lsp-test.cabal
+++ b/lsp-test.cabal
@@ -1,20 +1,20 @@
 name:                lsp-test
-version:             0.5.1.1
+version:             0.5.1.2
 synopsis:            Functional test framework for LSP servers.
 description:
   A test framework for writing tests against
   <https://microsoft.github.io/language-server-protocol/ Language Server Protocol servers>.
   @Language.Haskell.LSP.Test@ launches your server as a subprocess and allows you to simulate a session
   down to the wire, and @Language.Haskell.LSP.Test@ can replay captured sessions from
-  <haskell-lsp-test https://hackage.haskell.org/package/haskell-lsp>.
+  <haskell-lsp https://hackage.haskell.org/package/haskell-lsp>.
   It's currently used for testing in <https://github.com/haskell/haskell-ide-engine haskell-ide-engine>.
-homepage:            https://github.com/Bubba/haskell-lsp-test#readme
+homepage:            https://github.com/bubba/lsp-test#readme
 license:             BSD3
 license-file:        LICENSE
 author:              Luke Lau
 maintainer:          luke_lau@icloud.com
 stability:           experimental
-bug-reports:         https://github.com/Bubba/haskell-lsp-test/issues
+bug-reports:         https://github.com/bubba/lsp-test/issues
 copyright:           2019 Luke Lau
 category:            Testing
 build-type:          Simple
@@ -25,7 +25,7 @@
 
 source-repository head
   type:     git
-  location: https://github.com/Bubba/haskell-lsp-test/
+  location: https://github.com/bubba/haskell-lsp-test/
 
 library
   hs-source-dirs:      src
@@ -36,7 +36,7 @@
                      , parser-combinators:Control.Applicative.Combinators
   default-language:    Haskell2010
   build-depends:       base >= 4.10 && < 5
-                     , haskell-lsp >= 0.8 && < 0.10
+                     , haskell-lsp >= 0.8 && < 0.11
                      , aeson
                      , aeson-pretty
                      , ansi-terminal
@@ -78,7 +78,7 @@
   build-depends:       base >= 4.10 && < 5
                      , hspec
                      , lens
-                     , haskell-lsp >= 0.8 && < 0.10
+                     , haskell-lsp >= 0.8 && < 0.11
                      , lsp-test
                      , data-default
                      , aeson
diff --git a/src/Language/Haskell/LSP/Test.hs b/src/Language/Haskell/LSP/Test.hs
--- a/src/Language/Haskell/LSP/Test.hs
+++ b/src/Language/Haskell/LSP/Test.hs
@@ -449,7 +449,7 @@
   caps <- asks sessionCapabilities
 
   let supportsDocChanges = fromMaybe False $ do
-        let C.ClientCapabilities mWorkspace _ _ = caps
+        let mWorkspace = C._workspace caps
         C.WorkspaceClientCapabilities _ mEdit _ _ _ _ _ _ <- mWorkspace
         C.WorkspaceEditClientCapabilities mDocChanges <- mEdit
         mDocChanges