diff --git a/pkgs/servers/monitoring/prometheus/default.nix b/pkgs/servers/monitoring/prometheus/default.nix
index 627186e47ac..e55d0018b88 100644
--- a/pkgs/servers/monitoring/prometheus/default.nix
+++ b/pkgs/servers/monitoring/prometheus/default.nix
@@ -1,54 +1,46 @@
-{ stdenv, go, buildGoPackage, fetchFromGitHub }:
+{ lib, go, buildGoPackage, fetchFromGitHub }:
 
 let
   goPackagePath = "github.com/prometheus/prometheus";
-in rec {
-  buildPrometheus = { version, sha256, doCheck ? true, ... }@attrs:
-    let attrs' = builtins.removeAttrs attrs ["version" "sha256"]; in
-      buildGoPackage ({
-        name = "prometheus-${version}";
+in
+buildGoPackage rec {
+  pname = "prometheus";
+  version = "2.12.0";
 
-        inherit goPackagePath;
+  inherit goPackagePath;
 
-        src = fetchFromGitHub {
-          rev = "v${version}";
-          owner = "prometheus";
-          repo = "prometheus";
-          inherit sha256;
-        };
-
-        buildFlagsArray = let t = "${goPackagePath}/vendor/github.com/prometheus/common/version"; in ''
-          -ldflags=
-             -X ${t}.Version=${version}
-             -X ${t}.Revision=unknown
-             -X ${t}.Branch=unknown
-             -X ${t}.BuildUser=nix@nixpkgs
-             -X ${t}.BuildDate=unknown
-             -X ${t}.GoVersion=${stdenv.lib.getVersion go}
-        '';
-
-        preInstall = ''
-          mkdir -p "$bin/share/doc/prometheus" "$bin/etc/prometheus"
-          cp -a $src/documentation/* $bin/share/doc/prometheus
-          cp -a $src/console_libraries $src/consoles $bin/etc/prometheus
-        '';
-
-        meta = with stdenv.lib; {
-          description = "Service monitoring system and time series database";
-          homepage = https://prometheus.io;
-          license = licenses.asl20;
-          maintainers = with maintainers; [ benley fpletz globin ];
-          platforms = platforms.unix;
-        };
-    } // attrs');
-
-  prometheus_1 = buildPrometheus {
-    version = "1.8.2";
-    sha256 = "088flpg3qgnj9afl9vbaa19v2s1d21yxy38nrlv5m7cxwy2pi5pv";
-  };
-
-  prometheus_2 = buildPrometheus {
-    version = "2.12.0";
+  src = fetchFromGitHub {
+    rev = "v${version}";
+    owner = "prometheus";
+    repo = "prometheus";
     sha256 = "1ci9dc512c1hry1b8jqif0mrnks6w3yagwm3jf69ihcwilr2n7vs";
   };
+
+  buildFlagsArray = let
+    t = "${goPackagePath}/vendor/github.com/prometheus/common/version";
+  in ''
+    -ldflags=
+       -X ${t}.Version=${version}
+       -X ${t}.Revision=unknown
+       -X ${t}.Branch=unknown
+       -X ${t}.BuildUser=nix@nixpkgs
+       -X ${t}.BuildDate=unknown
+       -X ${t}.GoVersion=${lib.getVersion go}
+  '';
+
+  preInstall = ''
+    mkdir -p "$bin/share/doc/prometheus" "$bin/etc/prometheus"
+    cp -a $src/documentation/* $bin/share/doc/prometheus
+    cp -a $src/console_libraries $src/consoles $bin/etc/prometheus
+  '';
+
+  doCheck = true;
+
+  meta = with lib; {
+    description = "Service monitoring system and time series database";
+    homepage = "https://prometheus.io";
+    license = licenses.asl20;
+    maintainers = with maintainers; [ benley fpletz globin willibutz ];
+    platforms = platforms.unix;
+  };
 }
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index add9353551a..106080ae519 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -15014,13 +15014,8 @@ in
 
   postgresql_jdbc = callPackage ../development/java-modules/postgresql_jdbc { };
 
-  inherit (callPackage ../servers/monitoring/prometheus { }) prometheus_1;
-
-  inherit (callPackage ../servers/monitoring/prometheus { })
-    prometheus_2;
-
   prom2json = callPackage ../servers/monitoring/prometheus/prom2json.nix { };
-  prometheus = prometheus_1;
+  prometheus = callPackage ../servers/monitoring/prometheus { };
   prometheus-alertmanager = callPackage ../servers/monitoring/prometheus/alertmanager.nix { };
   prometheus-aws-s3-exporter = callPackage ../servers/monitoring/prometheus/aws-s3-exporter.nix { };
   prometheus-bind-exporter = callPackage ../servers/monitoring/prometheus/bind-exporter.nix { };