diff --git a/data/grid5000/sites/sophia/clusters/esterel4/nodes/esterel4-1.json b/data/grid5000/sites/sophia/clusters/esterel4/nodes/esterel4-1.json
index 17082145d62dd29c0f9af263511e0880cda49231..0ca1cf8814c53245bdbc1a67b79338b0471be2ff 100644
--- a/data/grid5000/sites/sophia/clusters/esterel4/nodes/esterel4-1.json
+++ b/data/grid5000/sites/sophia/clusters/esterel4/nodes/esterel4-1.json
@@ -237,7 +237,7 @@
     "clock_speed": 2200000000,
     "ht_capable": true,
     "instruction_set": "x86-64",
-    "microarchitecture": "Haswell",
+    "microarchitecture": "Broadwell",
     "microcode": "0xb000040",
     "model": "Intel Xeon",
     "other_description": "Intel(R) Xeon(R) CPU E5-2630 v4 @ 2.20GHz",
diff --git a/input/grid5000/sites/sophia/clusters/esterel4/esterel4.yaml b/input/grid5000/sites/sophia/clusters/esterel4/esterel4.yaml
index 7e3b1ba2b260c46ac9d414e94c86fd928bb52ebd..8635c7d227f2478a57883f4ef1b2c8adcb039b67 100644
--- a/input/grid5000/sites/sophia/clusters/esterel4/esterel4.yaml
+++ b/input/grid5000/sites/sophia/clusters/esterel4/esterel4.yaml
@@ -14,7 +14,7 @@ nodes:
       besteffort: true
       max_walltime: 0
     processor:
-      microarchitecture: Haswell
+      microarchitecture: Broadwell
       clock_speed: 2_200_000_000
     network_adapters:
       bmc: