diff --git a/configs/contexts/repricing/v1/glamsterdam-devnet-7/test-source.compute.builder.yaml b/configs/contexts/repricing/v1/glamsterdam-devnet-7/test-source.compute.builder.yaml
index 9ead2a2..c228510 100644
--- a/configs/contexts/repricing/v1/glamsterdam-devnet-7/test-source.compute.builder.yaml
+++ b/configs/contexts/repricing/v1/glamsterdam-devnet-7/test-source.compute.builder.yaml
@@ -2,7 +2,9 @@ builder:
   eest_payloads:
     pull_policy: always
     eest_repo: https://github.com/ethereum/execution-specs.git
-    eest_ref: forks/amsterdam
+    # Frozen pre-devnet-8 snapshot of forks/amsterdam (forks/amsterdam now
+    # merges devnet-8 spec PRs and is no longer usable for benchmark fills).
+    eest_ref: benchmarks/amsterdam
     config:
       fork: amsterdam
       # Hardhat/Anvil dev key #0 → 0xf39Fd6…2266 (the pre-funded seed above).
diff --git a/configs/contexts/repricing/v1/glamsterdam-devnet-7/test-source.stateful.builder.yaml b/configs/contexts/repricing/v1/glamsterdam-devnet-7/test-source.stateful.builder.yaml
index 8efafdc..4fd1a34 100644
--- a/configs/contexts/repricing/v1/glamsterdam-devnet-7/test-source.stateful.builder.yaml
+++ b/configs/contexts/repricing/v1/glamsterdam-devnet-7/test-source.stateful.builder.yaml
@@ -2,7 +2,9 @@ builder:
   eest_payloads:
     pull_policy: always
     eest_repo: https://github.com/ethereum/execution-specs.git
-    eest_ref: forks/amsterdam
+    # Frozen pre-devnet-8 snapshot of forks/amsterdam (forks/amsterdam now
+    # merges devnet-8 spec PRs and is no longer usable for benchmark fills).
+    eest_ref: benchmarks/amsterdam
     config:
       fork: amsterdam
       # Key #0 → 0xf39Fd6…2266 (the pre-funded seed in the state-actor template)