diff --git a/pkgs/by-name/co/cosign/package.nix b/pkgs/by-name/co/cosign/package.nix
index 52de7fc557cd..30556885da1d 100644
--- a/pkgs/by-name/co/cosign/package.nix
+++ b/pkgs/by-name/co/cosign/package.nix
@@ -13,13 +13,13 @@
 
 buildGoModule (finalAttrs: {
   pname = "cosign";
-  version = "2.5.0";
+  version = "2.5.3";
 
   src = fetchFromGitHub {
     owner = "sigstore";
     repo = "cosign";
     rev = "v${finalAttrs.version}";
-    hash = "sha256-QvU+JpIcE9EX+ehRWvs2bS2VGgGVekNX8f5+mITIwU0=";
+    hash = "sha256-EpCG20SSZFNc/oMgyUP/oARNTrpkzNsTvsA0Wx+zI00=";
   };
 
   buildInputs = lib.optional (stdenv.hostPlatform.isLinux && pivKeySupport) (lib.getDev pcsclite);
@@ -29,7 +29,7 @@ buildGoModule (finalAttrs: {
     installShellFiles
   ];
 
-  vendorHash = "sha256-qIi+Pp4XZg1GxOhM9fCyD9rPaIiQHhoQudB50gzWgrM=";
+  vendorHash = "sha256-YwSi1TqtcGE1sV9NLJ3lxA8kk0gL+9kTgcJzvIJRanE=";
 
   subPackages = [
     "cmd/cosign"
@@ -50,14 +50,21 @@ buildGoModule (finalAttrs: {
   preCheck = ''
     # test all paths
     unset subPackages
-
-    rm pkg/cosign/ctlog_test.go # Require network access
-    rm pkg/cosign/tlog_test.go # Require network access
-    rm cmd/cosign/cli/verify/verify_test.go # Require network access
-    rm cmd/cosign/cli/verify/verify_blob_attestation_test.go # Require network access
-    rm cmd/cosign/cli/verify/verify_blob_test.go # Require network access
   '';
 
+  checkFlags =
+    let
+      # Skip tests that require network access
+      skippedTests = [
+        "TestLoadCertsKeylessVerification/default_fulcio"
+        "TestGetCTLogPubKeys"
+        "TestGetRekorPubKeys"
+        "TestVerifyEmbeddedSCT"
+        "TestValidateAndUnpackCertWithSCT"
+      ];
+    in
+    [ "-skip=^${builtins.concatStringsSep "$|^" skippedTests}$" ];
+
   postInstall = lib.optionalString (stdenv.buildPlatform.canExecute stdenv.hostPlatform) ''
     installShellCompletion --cmd cosign \
       --bash <($out/bin/cosign completion bash) \