diff --git a/DISTRIBUTION.md b/DISTRIBUTION.md
index 35f2331..0f69398 100644
--- a/DISTRIBUTION.md
+++ b/DISTRIBUTION.md
@@ -8,6 +8,21 @@ Give this new distribution a semantic version number based on what changed (new
 
 ## History
 
+### 1.2.0
+
+**NB** : these version number and entry content are provisional,  as 1.2.0 has not been released yet, as of 2024/05/22
+
+This version adds the necessary change for the administration portal :
+- Using fixed prometheus & alertmanager version to be able to rely on alertmanager's v2 API.
+
+|Component|Version|
+|---------|-------|
+|psc-ps-api|`2.0.1`|
+|psc-amar-connector|`1.0.0`|
+|psc-toggle-manager|`0.0.2`|
+|psc-rass-loader|`1.0.1`|
+|psc-extract|`0.1.0`|
+
 ### 1.1.0
 
 Adding a sha256 digest to all archives produced by psc-extract to allow the downloader
diff --git a/psc-alertmanager/waypoint.hcl b/psc-alertmanager/waypoint.hcl
index c8a94e8..1ce537f 100644
--- a/psc-alertmanager/waypoint.hcl
+++ b/psc-alertmanager/waypoint.hcl
@@ -84,5 +84,5 @@ variable "image" {
 
 variable "tag" {
   type    = string
-  default = "latest"
+  default = "v0.27.0"
 }
diff --git a/psc-prometheus/waypoint.hcl b/psc-prometheus/waypoint.hcl
index 5dbfc40..3f537e0 100644
--- a/psc-prometheus/waypoint.hcl
+++ b/psc-prometheus/waypoint.hcl
@@ -83,6 +83,6 @@ variable "image" {
 
 variable "tag" {
   type = string
-  default = "latest"
+  default = "2.51.0"
 }