diff --git a/pkgs/by-name/ci/cimg/package.nix b/pkgs/by-name/ci/cimg/package.nix
index 1d45df4f632e..5d2a68e4be26 100644
--- a/pkgs/by-name/ci/cimg/package.nix
+++ b/pkgs/by-name/ci/cimg/package.nix
@@ -7,13 +7,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "cimg";
-  version = "3.4.0";
+  version = "3.4.2";
 
   src = fetchFromGitHub {
     owner = "GreycLab";
     repo = "CImg";
     rev = "refs/tags/v.${finalAttrs.version}";
-    hash = "sha256-BnDS1n1aIQh9HJZeZv0hR7vo2l6Kf9B/11fYFbb/cpQ=";
+    hash = "sha256-lYs8V/phdyM1kpcxBDS3vAjxFgGCaaOCdNHU3//dgDs=";
   };
 
   outputs = [ "out" "doc" ];
diff --git a/pkgs/by-name/gm/gmic-qt/package.nix b/pkgs/by-name/gm/gmic-qt/package.nix
index 5d097f13f5c6..dec42a99a488 100644
--- a/pkgs/by-name/gm/gmic-qt/package.nix
+++ b/pkgs/by-name/gm/gmic-qt/package.nix
@@ -49,13 +49,13 @@ assert lib.assertMsg
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "gmic-qt${lib.optionalString (variant != "standalone") "-${variant}"}";
-  version = "3.4.0";
+  version = "3.4.2";
 
   src = fetchFromGitHub {
     owner = "c-koi";
     repo = "gmic-qt";
     rev = "v.${finalAttrs.version}";
-    hash = "sha256-IZMvvhWQwbnyxF3CkvEjySl3o3DB6UucpjqOFR9NjQ0=";
+    hash = "sha256-fM6dBxBC2b1/v+rfiP//QaAcTJmMtYPn4OUNwVqKhYk=";
   };
 
   nativeBuildInputs = [