diff --git a/pkgs/data/icons/elementary-xfce-icon-theme/default.nix b/pkgs/data/icons/elementary-xfce-icon-theme/default.nix
index d2c519614b36..69eef5754d62 100644
--- a/pkgs/data/icons/elementary-xfce-icon-theme/default.nix
+++ b/pkgs/data/icons/elementary-xfce-icon-theme/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "elementary-xfce-icon-theme";
-  version = "0.17";
+  version = "0.18";
 
   src = fetchFromGitHub {
     owner = "shimmerproject";
     repo = "elementary-xfce";
     rev = "v${version}";
-    sha256 = "sha256-9WdVUCwHFX6wlu3++QqzV0RgTDYDnUYqK7yUl83liko=";
+    sha256 = "sha256-OgQtqBrYKDgU4mhXLFO8YwiPv2lKqGSdZnfKCd9ri4g=";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/data/themes/greybird/default.nix b/pkgs/data/themes/greybird/default.nix
index 730a6112af27..0462a28d34fb 100644
--- a/pkgs/data/themes/greybird/default.nix
+++ b/pkgs/data/themes/greybird/default.nix
@@ -13,13 +13,13 @@
 
 stdenv.mkDerivation rec {
   pname = "greybird";
-  version = "3.23.2";
+  version = "3.23.3";
 
   src = fetchFromGitHub {
     owner = "shimmerproject";
     repo = pname;
     rev = "v${version}";
-    sha256 = "h4sPjKpTufaunVP0d4Z5x/K+vRW1FpuLrMJjydx/a6w=";
+    sha256 = "+MZQ3FThuRFEfoARsF09B7POwytS5RgTs9zYzIHVtfg=";
   };
 
   nativeBuildInputs = [