diff --git a/haskell/.devcontainer/devcontainer.json b/haskell/.devcontainer/devcontainer.json
index a27a83a..d18699e 100644
--- a/haskell/.devcontainer/devcontainer.json
+++ b/haskell/.devcontainer/devcontainer.json
@@ -6,8 +6,7 @@
     "customizations": {
         "vscode": {
             "extensions": [
-                "haskell.haskell",
-                "phoityne.phoityne-vscode"
+                "haskell.haskell"
             ]
         }
     },