diff --git a/pkgs/development/compilers/abcl/default.nix b/pkgs/development/compilers/abcl/default.nix
index 756e6c917c3..2ecd08426eb 100644
--- a/pkgs/development/compilers/abcl/default.nix
+++ b/pkgs/development/compilers/abcl/default.nix
@@ -1,11 +1,11 @@
 {lib, stdenv, fetchurl, ant, jre, jdk}:
 stdenv.mkDerivation rec {
   pname = "abcl";
-  version = "1.8.0";
+  version = "1.9.0";
   # or fetchFromGitHub(owner,repo,rev) or fetchgit(rev)
   src = fetchurl {
     url = "https://common-lisp.net/project/armedbear/releases/${version}/${pname}-src-${version}.tar.gz";
-    sha256 = "0zr5mmqyj484vza089l8vc88d07g0m8ymxzglvar3ydwyvi1x1qx";
+    sha256 = "sha256-oStchPKINL2Yjjra4K0q1MxsRR2eRPPAhT0AcVjBmGk=";
   };
   configurePhase = ''
     mkdir nix-tools