diff --git a/.github/workflows/tox_verify.yaml b/.github/workflows/tox_verify.yaml
index 8f278d04f2f..fb0e9a783f6 100644
--- a/.github/workflows/tox_verify.yaml
+++ b/.github/workflows/tox_verify.yaml
@@ -102,7 +102,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           repository: ethereum/execution-specs
-          ref: 9923823367b5586228e590537d47aa9cc4c6a206
+          ref: 78fb726158c69d8fa164e28f195fabf6ab59b915
           path: execution-specs
           sparse-checkout: |
             src/ethereum
@@ -139,7 +139,7 @@ jobs:
         uses: actions/checkout@v4
         with:
           repository: ethereum/execution-specs
-          ref: 9923823367b5586228e590537d47aa9cc4c6a206
+          ref: 78fb726158c69d8fa164e28f195fabf6ab59b915
           path: execution-specs
           sparse-checkout: |
             src/ethereum
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 93713310d0a..da15477f576 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -97,6 +97,7 @@ Release tarball changes:
 - ✨ Fill test fixtures using EELS by default. EEST now uses the [`ethereum-specs-evm-resolver`](https://github.com/petertdavies/ethereum-spec-evm-resolver) with the EELS daemon ([#792](https://github.com/ethereum/execution-spec-tests/pull/792)).
 - 🔀 Move the `evm_transition_tool` package to `ethereum_clis` and derive the transition tool CL interfaces from a shared `EthereumCLI` class that can be reused for other sub-commands ([#894](https://github.com/ethereum/execution-spec-tests/pull/894)).
 - ✨ Pass `state_test` property to T8N tools that support it (Only EELS at the time of merge) ([#943](https://github.com/ethereum/execution-spec-tests/pull/943)).
+- ✨ Turn on `--traces` for EELS + `ethereum-specs-evm-resolver` ([#1174](https://github.com/ethereum/execution-spec-tests/pull/1174)).
 
 ### 📋 Misc
 
diff --git a/eels_resolutions.json b/eels_resolutions.json
index d42c3040f1a..d071057a1e6 100644
--- a/eels_resolutions.json
+++ b/eels_resolutions.json
@@ -2,7 +2,7 @@
     "EELSMaster": {
         "git_url": "https://github.com/ethereum/execution-specs.git",
         "branch": "master",
-        "commit": "9923823367b5586228e590537d47aa9cc4c6a206"
+        "commit": "78fb726158c69d8fa164e28f195fabf6ab59b915"
     },
     "Frontier": {
         "same_as": "EELSMaster"
diff --git a/pyproject.toml b/pyproject.toml
index 0d355f91d98..8b6800b48aa 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -16,7 +16,7 @@ classifiers = [
 ]
 dependencies = [
     "click>=8.1.0,<9",
-    "ethereum @ git+https://github.com/ethereum/execution-specs@9923823367b5586228e590537d47aa9cc4c6a206",
+    "ethereum @ git+https://github.com/ethereum/execution-specs@78fb726158c69d8fa164e28f195fabf6ab59b915",
     "hive.py @ git+https://github.com/marioevz/hive.py",
     "ethereum-spec-evm-resolver @ git+https://github.com/petertdavies/ethereum-spec-evm-resolver",
     "setuptools",
@@ -123,4 +123,4 @@ mypy_path = ["src", "$MYPY_CONFIG_FILE_DIR/stubs"]
 plugins = ["pydantic.mypy"]
 
 [tool.uv.sources]
-ethereum = { git = "https://github.com/ethereum/execution-specs", rev = "9923823367b5586228e590537d47aa9cc4c6a206" }
+ethereum = { git = "https://github.com/ethereum/execution-specs", rev = "78fb726158c69d8fa164e28f195fabf6ab59b915" }
diff --git a/src/ethereum_clis/transition_tool.py b/src/ethereum_clis/transition_tool.py
index 89bb85fdbcb..c8d8ce9b7ac 100644
--- a/src/ethereum_clis/transition_tool.py
+++ b/src/ethereum_clis/transition_tool.py
@@ -322,6 +322,11 @@ def _evaluate_server(
         request_data = t8n_data.get_request_data()
         request_data_json = request_data.model_dump(mode="json", **model_dump_config)
 
+        temp_dir = tempfile.TemporaryDirectory()
+        request_data_json["trace"] = self.trace
+        if self.trace:
+            request_data_json["output-basedir"] = temp_dir.name
+
         if debug_output_path:
             request_info = (
                 f"Server URL: {self.server_url}\n\n"
@@ -350,6 +355,10 @@ def _evaluate_server(
 
         output: TransitionToolOutput = TransitionToolOutput.model_validate(response_json)
 
+        if self.trace:
+            self.collect_traces(output.result.receipts, temp_dir, debug_output_path)
+        temp_dir.cleanup()
+
         if debug_output_path:
             response_info = (
                 f"Status Code: {response.status_code}\n\n"
diff --git a/uv.lock b/uv.lock
index 3827e9c923d..193a7b5e605 100644
--- a/uv.lock
+++ b/uv.lock
@@ -477,7 +477,7 @@ wheels = [
 [[package]]
 name = "ethereum"
 version = "0.1.0"
-source = { git = "https://github.com/ethereum/execution-specs?rev=9923823367b5586228e590537d47aa9cc4c6a206#9923823367b5586228e590537d47aa9cc4c6a206" }
+source = { git = "https://github.com/ethereum/execution-specs?rev=78fb726158c69d8fa164e28f195fabf6ab59b915#78fb726158c69d8fa164e28f195fabf6ab59b915" }
 dependencies = [
     { name = "coincurve" },
     { name = "ethereum-rlp" },
@@ -559,7 +559,7 @@ requires-dist = [
     { name = "click", specifier = ">=8.1.0,<9" },
     { name = "coincurve", specifier = ">=20.0.0,<21" },
     { name = "colorlog", specifier = ">=6.7.0,<7" },
-    { name = "ethereum", git = "https://github.com/ethereum/execution-specs?rev=9923823367b5586228e590537d47aa9cc4c6a206" },
+    { name = "ethereum", git = "https://github.com/ethereum/execution-specs?rev=78fb726158c69d8fa164e28f195fabf6ab59b915" },
     { name = "ethereum-rlp", specifier = ">=0.1.3,<0.2" },
     { name = "ethereum-spec-evm-resolver", git = "https://github.com/petertdavies/ethereum-spec-evm-resolver" },
     { name = "ethereum-types", specifier = ">=0.2.1,<0.3" },