diff --git a/pkgs/development/libraries/agda/cubical/default.nix b/pkgs/development/libraries/agda/cubical/default.nix
index 72bb3c3a501d..2e08044738ae 100644
--- a/pkgs/development/libraries/agda/cubical/default.nix
+++ b/pkgs/development/libraries/agda/cubical/default.nix
@@ -6,21 +6,15 @@
 
 mkDerivation rec {
   pname = "cubical";
-  version = "0.8";
+  version = "0.9";
 
   src = fetchFromGitHub {
     repo = pname;
     owner = "agda";
     rev = "v${version}";
-    hash = "sha256-KwwN2g2naEo4/rKTz2L/0Guh5LxymEYP53XQzJ6eMjM=";
+    hash = "sha256-Lmzofq2rKFmfsAoH3zIFB2QLeUhFmIO44JsF+dDrubw=";
   };
 
-  postPatch = ''
-    # This imports the Everything files, which we don't generate.
-    # TODO: remove for the next release
-    rm -rf Cubical/README.agda Cubical/Talks/EPA2020.agda
-  '';
-
   meta = with lib; {
     description = "A cubical type theory library for use with the Agda compiler";
     homepage = src.meta.homepage;