diff --git a/cabal.project b/cabal.project
index 4700730c2a..c426e1ede4 100644
--- a/cabal.project
+++ b/cabal.project
@@ -36,6 +36,16 @@ source-repository-package
 
 write-ghc-environment-files: never
 
+source-repository-package
+  type: git
+  location: https://github.com/haskell/lsp
+  tag: 7cc05f3d1249d89af91e82e6aa654bb632045307
+  subdir: lsp-types
+  subdir: lsp
+  subdir: lsp-test
+-- To check if issues are caused by:
+-- https://github.com/haskell/lsp/pull/326
+
 index-state: 2021-06-30T16:00:00Z
 
 constraints:
@@ -83,4 +93,3 @@ allow-newer:
     svg-builder:base,
     these:base,
     time-compat:base
-