diff --git a/pkgs/by-name/cg/cg3/package.nix b/pkgs/by-name/cg/cg3/package.nix
index e4e142d641ee..6423db36f790 100644
--- a/pkgs/by-name/cg/cg3/package.nix
+++ b/pkgs/by-name/cg/cg3/package.nix
@@ -7,64 +7,64 @@
   cmake,
   icu,
   boost,
+  pkg-config,
+  sqlite,
+  cg3,
 }:
 
-let
-  cg3 = stdenv.mkDerivation rec {
-    pname = "cg3";
-    version = "1.3.9";
+stdenv.mkDerivation (finalAttrs: {
+  pname = "cg3";
+  version = "1.5.1";
 
-    src = fetchFromGitHub {
-      owner = "GrammarSoft";
-      repo = "cg3";
-      rev = "v${version}";
-      sha256 = "sha256-TiEhhk90w5GibGZ4yalIf+4qLA8NoU6+GIPN6QNTz2A=";
-    };
-
-    nativeBuildInputs = [
-      cmake
-    ];
-
-    buildInputs = [
-      icu
-      boost
-    ];
-
-    doCheck = true;
-
-    postFixup = ''
-      substituteInPlace "$out"/lib/pkgconfig/cg3.pc \
-        --replace '=''${prefix}//' '=/'
-    '';
-
-    passthru.tests.minimal =
-      runCommand "${pname}-test"
-        {
-          buildInputs = [
-            cg3
-            dieHook
-          ];
-        }
-        ''
-          echo 'DELIMITERS = "."; ADD (tag) (*);' >grammar.cg3
-          printf '"<a>"\n\t"a" tag\n\n' >want.txt
-          printf '"<a>"\n\t"a"\n\n' | vislcg3 -g grammar.cg3 >got.txt
-          diff -s want.txt got.txt || die "Grammar application did not produce expected parse"
-          touch $out
-        '';
-
-    # TODO, consider optionals:
-    # - Enable tcmalloc unless darwin?
-    # - Enable python bindings?
-
-    meta = with lib; {
-      homepage = "https://github.com/GrammarSoft/cg3";
-      description = "Constraint Grammar interpreter, compiler and applicator vislcg3";
-      maintainers = with maintainers; [ unhammer ];
-      license = licenses.gpl3Plus;
-      platforms = platforms.all;
-    };
+  src = fetchFromGitHub {
+    owner = "GrammarSoft";
+    repo = "cg3";
+    tag = "v${finalAttrs.version}";
+    hash = "sha256-R3ePghkr4m6FmiHfhPVdLRAJaipIBhGLOX0Hz1nNPv4=";
   };
 
-in
-cg3
+  nativeBuildInputs = [
+    cmake
+    pkg-config
+  ];
+
+  buildInputs = [
+    icu
+    boost
+    sqlite
+  ];
+
+  doCheck = true;
+
+  postFixup = ''
+    substituteInPlace "$out"/lib/pkgconfig/cg3.pc \
+      --replace-fail '=''${prefix}//' '=/'
+  '';
+
+  passthru.tests.minimal =
+    runCommand "cg3-test"
+      {
+        buildInputs = [
+          cg3
+          dieHook
+        ];
+      }
+      ''
+        echo 'DELIMITERS = "."; ADD (tag) (*);' >grammar.cg3
+        printf '"<a>"\n\t"a" tag\n\n' >want.txt
+        printf '"<a>"\n\t"a"\n\n' | vislcg3 -g grammar.cg3 >got.txt
+        diff -s want.txt got.txt || die "Grammar application did not produce expected parse"
+        touch $out
+      '';
+
+  # TODO, consider optionals:
+  # - Enable tcmalloc unless darwin?
+  # - Enable python bindings?
+  meta = {
+    homepage = "https://github.com/GrammarSoft/cg3";
+    description = "Constraint Grammar interpreter, compiler and applicator vislcg3";
+    maintainers = with lib.maintainers; [ unhammer ];
+    license = lib.licenses.gpl3Plus;
+    platforms = lib.platforms.all;
+  };
+})