diff --git a/data/grid5000/sites/rennes/clusters/abacus14/nodes/abacus14-1.json b/data/grid5000/sites/rennes/clusters/abacus14/nodes/abacus14-1.json
index 7f2a818da9e48d764f65b3687cb8af78f5bdae39..408bab3a57074656f9d2c39c69ff1401d8a31d0d 100644
--- a/data/grid5000/sites/rennes/clusters/abacus14/nodes/abacus14-1.json
+++ b/data/grid5000/sites/rennes/clusters/abacus14/nodes/abacus14-1.json
@@ -323,7 +323,7 @@
   "supported_job_types": {
     "besteffort": true,
     "deploy": true,
-    "max_walltime": 86400,
+    "max_walltime": 604800,
     "queues": [
       "production",
       "admin"
diff --git a/data/grid5000/sites/rennes/clusters/roazhon3/nodes/roazhon3-1.json b/data/grid5000/sites/rennes/clusters/roazhon3/nodes/roazhon3-1.json
index 5a4acb0d2572db516f0710c6f627c182eb52aa3b..7d50019b01358bef89a1ab3337e5592bcac4e8a2 100644
--- a/data/grid5000/sites/rennes/clusters/roazhon3/nodes/roazhon3-1.json
+++ b/data/grid5000/sites/rennes/clusters/roazhon3/nodes/roazhon3-1.json
@@ -271,7 +271,7 @@
   "supported_job_types": {
     "besteffort": true,
     "deploy": true,
-    "max_walltime": 86400,
+    "max_walltime": 604800,
     "queues": [
       "admin",
       "production"
diff --git a/input/grid5000/sites/rennes/clusters/abacus14/abacus14.yaml b/input/grid5000/sites/rennes/clusters/abacus14/abacus14.yaml
index 44d386e71e47173e54010b3e97aa031e1e9b3566..61fe17fa953757310802c83deaec00f549257dcf 100644
--- a/input/grid5000/sites/rennes/clusters/abacus14/abacus14.yaml
+++ b/input/grid5000/sites/rennes/clusters/abacus14/abacus14.yaml
@@ -16,7 +16,7 @@ nodes:
     supported_job_types:
       deploy: true
       besteffort: true
-      max_walltime: 86400
+      max_walltime: 604800
     processor:
       microarchitecture: Skylake-SP
       clock_speed: 2650000000
diff --git a/input/grid5000/sites/rennes/clusters/roazhon12/roazhon12.yaml b/input/grid5000/sites/rennes/clusters/roazhon12/roazhon12.yaml
index 13ec4425a785cefb76a6fa017b8496236339d679..0291aee7c22a3f3579163ed0b5cdb339782a6ee6 100644
--- a/input/grid5000/sites/rennes/clusters/roazhon12/roazhon12.yaml
+++ b/input/grid5000/sites/rennes/clusters/roazhon12/roazhon12.yaml
@@ -12,7 +12,7 @@ nodes:
     supported_job_types:
       deploy: true
       besteffort: true
-      max_walltime: 172800
+      max_walltime: 604800
     processor:
       microarchitecture: Sandy Bridge
       clock_speed: 2200000000
diff --git a/input/grid5000/sites/rennes/clusters/roazhon3/roazhon3.yaml b/input/grid5000/sites/rennes/clusters/roazhon3/roazhon3.yaml
index 3422cb3cb31e20aa4a62ab16653bb4769c0db671..b9014446592e19f30e22de4157aa4425cc0a6056 100644
--- a/input/grid5000/sites/rennes/clusters/roazhon3/roazhon3.yaml
+++ b/input/grid5000/sites/rennes/clusters/roazhon3/roazhon3.yaml
@@ -11,7 +11,7 @@ nodes:
     supported_job_types:
       deploy: true
       besteffort: true
-      max_walltime: 86400
+      max_walltime: 604800
     processor:
       microarchitecture: Skylake-SP
       clock_speed: 2600000000