diff --git a/pkgs/applications/virtualization/singularity/packages.nix b/pkgs/applications/virtualization/singularity/packages.nix
index 556e7cce0e5a..a554dbc68ea4 100644
--- a/pkgs/applications/virtualization/singularity/packages.nix
+++ b/pkgs/applications/virtualization/singularity/packages.nix
@@ -9,19 +9,19 @@ let
     callPackage
       (import ./generic.nix rec {
         pname = "apptainer";
-        version = "1.4.2";
+        version = "1.4.3";
         projectName = "apptainer";
 
         src = fetchFromGitHub {
           owner = "apptainer";
           repo = "apptainer";
           tag = "v${version}";
-          hash = "sha256-xa35HhziEUzuNIKT1h/nOXjV5/UYkbFlJcZMApaIGfQ=";
+          hash = "sha256-VUtTv6kH08CCOLlRq4lPyOOlduf/oSiGcQ3cHl7ks8I=";
         };
 
         # Override vendorHash with overrideAttrs.
         # See https://nixos.org/manual/nixpkgs/unstable/#buildGoModule-vendorHash
-        vendorHash = "sha256-HP5XJ74ELaZT/bZgAPqe7vBPvJhHwyZVSNrUa+KToIE=";
+        vendorHash = "sha256-Q56kFnWw5TqeNGyv2n9QempfIdfPXX1qzdf/G68Pfp8=";
 
         extraDescription = " (previously known as Singularity)";
         extraMeta.homepage = "https://apptainer.org";