diff --git a/pkgs/development/libraries/babl/default.nix b/pkgs/development/libraries/babl/default.nix
index a09d95798920..010f4c57aede 100644
--- a/pkgs/development/libraries/babl/default.nix
+++ b/pkgs/development/libraries/babl/default.nix
@@ -12,13 +12,13 @@
 
 stdenv.mkDerivation rec {
   pname = "babl";
-  version = "0.1.96";
+  version = "0.1.98";
 
   outputs = [ "out" "dev" ];
 
   src = fetchurl {
     url = "https://download.gimp.org/pub/babl/${lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
-    sha256 = "sha256-M2c/5Fmpg/QRJFpJ+B/X8ZZq8eqOypsJWpQMVCuFRfY=";
+    sha256 = "87Ii+E5GJzXeY/qcNlGULyt4/TFMc6IuBf98c6/SOvE=";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/development/libraries/gegl/default.nix b/pkgs/development/libraries/gegl/default.nix
index fb50c2c8fc07..61106d7f620e 100644
--- a/pkgs/development/libraries/gegl/default.nix
+++ b/pkgs/development/libraries/gegl/default.nix
@@ -10,6 +10,7 @@
 , glib
 , babl
 , libpng
+, llvmPackages
 , cairo
 , libjpeg
 , librsvg
@@ -36,14 +37,14 @@
 
 stdenv.mkDerivation rec {
   pname = "gegl";
-  version = "0.4.38";
+  version = "0.4.40";
 
   outputs = [ "out" "dev" "devdoc" ];
   outputBin = "dev";
 
   src = fetchurl {
     url = "https://download.gimp.org/pub/gegl/${lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
-    sha256 = "sha256-5KM8hDClBC+6hDm1lTSOcYcPDZX7+IX/VT+QIMG+11A=";
+    sha256 = "zd6A0VpJ2rmmFO+Y+ATIzm5M/hM5o8JAw08/tFQ2uF0=";
   };
 
   nativeBuildInputs = [
@@ -77,7 +78,11 @@ stdenv.mkDerivation rec {
     luajit
     openexr
     suitesparse
-  ] ++ lib.optional stdenv.isDarwin OpenCL;
+  ] ++ lib.optionals stdenv.isDarwin [
+    OpenCL
+  ] ++ lib.optionals stdenv.cc.isClang [
+    llvmPackages.openmp
+  ];
 
   # for gegl-4.0.pc
   propagatedBuildInputs = [