diff --git a/data/grid5000/sites/nancy/clusters/gruss/nodes/gruss-1.json b/data/grid5000/sites/nancy/clusters/gruss/nodes/gruss-1.json
index bb26cc985380fdd8a28ce074c3c20f9c7e32aa5e..46810cb0613da1ac39f26c826a4fcc76ba81a9ea 100644
--- a/data/grid5000/sites/nancy/clusters/gruss/nodes/gruss-1.json
+++ b/data/grid5000/sites/nancy/clusters/gruss/nodes/gruss-1.json
@@ -139,7 +139,7 @@
   },
   "software": {
     "forced-deployment-timestamp": 202007300948,
-    "postinstall-version": "1.2021092101",
+    "postinstall-version": "1.2021092900",
     "standard-environment": "debian10-x64-std"
   },
   "storage_devices": [
diff --git a/data/grid5000/sites/nancy/clusters/gruss/nodes/gruss-2.json b/data/grid5000/sites/nancy/clusters/gruss/nodes/gruss-2.json
index fce21da59aea4189f7f6ab5554b7b9126f49ceeb..058ef78e8475f7568cf621112ed6739b374515cd 100644
--- a/data/grid5000/sites/nancy/clusters/gruss/nodes/gruss-2.json
+++ b/data/grid5000/sites/nancy/clusters/gruss/nodes/gruss-2.json
@@ -139,7 +139,7 @@
   },
   "software": {
     "forced-deployment-timestamp": 202007300948,
-    "postinstall-version": "1.2021092101",
+    "postinstall-version": "1.2021092900",
     "standard-environment": "debian10-x64-std"
   },
   "storage_devices": [
diff --git a/data/grid5000/sites/nancy/clusters/gruss/nodes/gruss-3.json b/data/grid5000/sites/nancy/clusters/gruss/nodes/gruss-3.json
index 02a0af8dae30ca1dbd887f0ea1fdeb36a06f9267..70ea5129116f34dec0b70020a048380a7c871877 100644
--- a/data/grid5000/sites/nancy/clusters/gruss/nodes/gruss-3.json
+++ b/data/grid5000/sites/nancy/clusters/gruss/nodes/gruss-3.json
@@ -139,7 +139,7 @@
   },
   "software": {
     "forced-deployment-timestamp": 202007300948,
-    "postinstall-version": "1.2021092101",
+    "postinstall-version": "1.2021092900",
     "standard-environment": "debian10-x64-std"
   },
   "storage_devices": [
diff --git a/data/grid5000/sites/nancy/clusters/gruss/nodes/gruss-4.json b/data/grid5000/sites/nancy/clusters/gruss/nodes/gruss-4.json
index 360106fe1b49c6862507ee802743f66c7f7c5bf0..ca1a4e8578c33d426835801c28c5d5bb581af028 100644
--- a/data/grid5000/sites/nancy/clusters/gruss/nodes/gruss-4.json
+++ b/data/grid5000/sites/nancy/clusters/gruss/nodes/gruss-4.json
@@ -139,7 +139,7 @@
   },
   "software": {
     "forced-deployment-timestamp": 202007300948,
-    "postinstall-version": "1.2021092101",
+    "postinstall-version": "1.2021092900",
     "standard-environment": "debian10-x64-std"
   },
   "storage_devices": [