diff --git a/build/checksums.txt b/build/checksums.txt
index f53216e969..adc9f611e4 100644
--- a/build/checksums.txt
+++ b/build/checksums.txt
@@ -2,8 +2,8 @@
 
 # version:spec-tests 3.0.0
 # https://github.com/ethereum/execution-spec-tests/releases
-# https://github.com/ethereum/execution-spec-tests/releases/download/v3.0.0/fixtures_stable.tar.gz
-110c3f7808bebf33541efedb5e57fc22dd1f33f83220343b1d720032739e785b  fixtures_stable.tar.gz
+# https://github.com/ethereum/execution-spec-tests/releases/download/pectra-devnet-6%40v1.0.0/fixtures_pectra-devnet-6.tar.gz
+b69211752a3029083c020dc635fe12156ca1a6725a08559da540a0337586a77e  fixtures_pectra-devnet-6.tar.gz
 
 # version:golang 1.23.5
 # https://go.dev/dl/
diff --git a/build/ci.go b/build/ci.go
index 4a445f21a5..df37f6fea7 100644
--- a/build/ci.go
+++ b/build/ci.go
@@ -338,7 +338,7 @@ func downloadSpecTestFixtures(csdb *build.ChecksumDB, cachedir string) string {
 		log.Fatal(err)
 	}
 	ext := ".tar.gz"
-	base := "fixtures_stable" // TODO(MariusVanDerWijden) rename once the version becomes part of the filename
+	base := "fixtures_pectra-devnet-6" // TODO(s1na) rename once the version becomes part of the filename
 	url := fmt.Sprintf("https://github.com/ethereum/execution-spec-tests/releases/download/v%s/%s%s", executionSpecTestsVersion, base, ext)
 	archivePath := filepath.Join(cachedir, base+ext)
 	if err := csdb.DownloadFile(url, archivePath); err != nil {