diff --git a/pkgs/development/tools/ocaml/merlin/4.x.nix b/pkgs/development/tools/ocaml/merlin/4.x.nix
index a5dec7993d84..56871eab1cc1 100644
--- a/pkgs/development/tools/ocaml/merlin/4.x.nix
+++ b/pkgs/development/tools/ocaml/merlin/4.x.nix
@@ -31,15 +31,7 @@ let
   hashes = {
     "4.7-412" = "sha256-0U3Ia7EblKULNy8AuXFVKACZvGN0arYJv7BWiBRgT0Y=";
     "4.7-413" = "sha256-aVmGWS4bJBLuwsxDKsng/n0A6qlyJ/pnDTcYab/5gyU=";
-    "4.8-414" = "sha256-HMXWhcVOXW058y143rNBcfEOmjt2tZJXcXKHmKZ5i68=";
-    "4.8-500" = "sha256-n5NHKuo0/lZmfe7WskqnW3xm1S0PmXKSS93BDKrpjCI=";
-    "4.9-414" = "sha256-4j/EeBNZEmn/nSfIIJiOUgpmLIndCvfqZSshUXSZy/0=";
-    "4.9-500" = "sha256-uQfGazoxTxclHSiTfjji+tKJv8MKqRdHMPD/xfMZlSY=";
-    "4.10-414" = "sha256-/a1OqASISpb06eh2gsam1rE3wovM4CT8ybPV86XwR2c=";
-    "4.10-500" = "sha256-m9+Qz8DT94yNSwpamTVLQKISHtRVBWnZD3t/yyujSZ0=";
-    "4.12-414" = "sha256-tgMUT4KyFeJubYVY1Sdv9ZvPB1JwcqEGcCuwuMqXHRQ=";
     "4.12-500" = "sha256-j49R7KVzNKlXDL7WibTHxPG4VSOVv0uaz5/yMZZjkH8=";
-    "4.12-501" = "sha256-zMwzI1SXQDWQ9PaKL4o3J6JlRjmEs7lkXrwauy+QiMA=";
     "4.13-414" = "sha256-AlzxqTuh5AkW9dnPIv51abv7r0A/VOS3JOT5IHix2wM=";
     "4.13-501" = "sha256-G/VrI+qBVj2wxuB2qE9P1M73IvDmqmTrBFAA6mp+NRE=";
   };