diff --git a/build.gradle b/build.gradle
index 0c3c3094707fb2127de21778e4bd4358e6e4d545..b0f838db76805020df16928e03710fc446d7b4df 100644
--- a/build.gradle
+++ b/build.gradle
@@ -13,7 +13,7 @@ repositories {
     mavenCentral()
 }
 
-version = '1.5.4-SNAPSHOT'
+version = '1.5.4'
 group = 'net.geant.nmaas'
 
 java {
diff --git a/src/main/resources/changelog.json b/src/main/resources/changelog.json
index cbec5bfe40c5691e642c112da65825d3cf147a44..10d3a0eb9978fe07655edfd07ae46751895f6bfe 100644
--- a/src/main/resources/changelog.json
+++ b/src/main/resources/changelog.json
@@ -1,5 +1,16 @@
 {
   "versions" : [
+    {
+      "verNo" : "1.5.4",
+      "date" : "(2023/12/27)",
+      "topic" : [
+        {
+          "title" : "Optimized execution of Helm repo updates",
+          "tags" : "[Enhancement]",
+          "description" : "Added possibility to execute Helm repo updates asynchronously in order to speed up application instance deployment process."
+        }
+      ]
+    },
     {
       "verNo" : "1.5.3",
       "date" : "(2023/06/30)",