diff --git a/iridium.yaml b/iridium.yaml
index a14af2f..629b387 100644
--- a/iridium.yaml
+++ b/iridium.yaml
@@ -27,8 +27,8 @@ checks:
         version: "8.2.2"
       - compiler: "ghc"
         version: "8.4.3"
-      - compiler: "ghc"
-        version: "8.6.1"
+      # - compiler: "ghc"
+      #   version: "8.6.1"
     compilers-help: |
       for this to work, cabal will need the paths to the actual
       compilers to be configured; see the note about the user-global