diff --git a/pkgs/servers/keycloak/scim-for-keycloak/default.nix b/pkgs/servers/keycloak/scim-for-keycloak/default.nix
index e192f38fcb1..81686d2be1d 100644
--- a/pkgs/servers/keycloak/scim-for-keycloak/default.nix
+++ b/pkgs/servers/keycloak/scim-for-keycloak/default.nix
@@ -5,20 +5,19 @@
 
 maven.buildMavenPackage rec {
   pname = "scim-for-keycloak";
-  version = "kc-15-b2"; # When updating also update mvnHash
+  version = "kc-20-b1"; # When updating also update mvnHash
 
   src = fetchFromGitHub {
     owner = "Captain-P-Goldfish";
     repo = "scim-for-keycloak";
     rev = version;
-    sha256 = "K34c7xISjEETI3jFkRLdZ0C8pZHTWtPtrrIzwC76Tv0=";
+    hash = "sha256-kHjCVkcD8C0tIaMExDlyQmcWMhypisR1nyG93laB8WU=";
   };
 
-  mvnHash = "sha256-MWxm2q6tx8YcdEsleC2h+s+lp9whi11VQ1yFr8AZUyQ=";
+  mvnHash = "sha256-cOuJSU57OuP+U7lI+pDD7g9HPIfZAoDPYLf+eO+XuF4=";
 
   installPhase = ''
-    EAR=$(find -iname "*.ear")
-    install -D "$EAR" "$out/$(basename $EAR)"
+    install -D "scim-for-keycloak-server/target/scim-for-keycloak-${version}.jar" "$out/scim-for-keycloak-${version}.jar"
   '';
 
   meta = with lib; {