diff --git a/circle.yml b/circle.yml
index 74b26da60c..8185e8e772 100644
--- a/circle.yml
+++ b/circle.yml
@@ -365,8 +365,8 @@ jobs:
           command: >
             bin/evmone-blockchaintest ~/spec-tests/fixtures/blockchain_tests
       - download_execution_spec_tests:
-          release: pectra-devnet-5@v1.3.0
-          fixtures_suffix: pectra-devnet-5
+          release: pectra-devnet-6@v1.3.0
+          fixtures_suffix: pectra-devnet-6
       - run:
           name: "Execution spec tests (develop, state_tests)"
           # Tests for in-development EVM revision currently passing.