diff --git a/centurio-core/build.gradle.kts b/centurio-core/build.gradle.kts
index 89eeaff..5cfdcff 100644
--- a/centurio-core/build.gradle.kts
+++ b/centurio-core/build.gradle.kts
@@ -1,5 +1,5 @@
 plugins {
-    kotlin("plugin.serialization") version "1.5.21"
+    kotlin("plugin.serialization") version "1.7.20"
 }
 
 dependencies {
diff --git a/centurio-restapi/build.gradle.kts b/centurio-restapi/build.gradle.kts
index 665fe34..9ee25fd 100644
--- a/centurio-restapi/build.gradle.kts
+++ b/centurio-restapi/build.gradle.kts
@@ -8,7 +8,7 @@ val junitVersion = "5.7.2"
 val koinVersion = "3.1.0"
 
 plugins {
-    kotlin("plugin.serialization") version "1.5.21"
+    kotlin("plugin.serialization") version "1.7.20"
     application
 }
 
diff --git a/ethplorer-api/build.gradle.kts b/ethplorer-api/build.gradle.kts
index 56538a4..08dea31 100644
--- a/ethplorer-api/build.gradle.kts
+++ b/ethplorer-api/build.gradle.kts
@@ -1,5 +1,5 @@
 plugins {
-    kotlin("plugin.serialization") version "1.5.21"
+    kotlin("plugin.serialization") version "1.7.20"
 }
 
 dependencies {
diff --git a/nexus-api/build.gradle.kts b/nexus-api/build.gradle.kts
index fc06fe5..7bdb957 100644
--- a/nexus-api/build.gradle.kts
+++ b/nexus-api/build.gradle.kts
@@ -1,5 +1,5 @@
 plugins {
-    kotlin("plugin.serialization") version "1.5.21"
+    kotlin("plugin.serialization") version "1.7.20"
 }
 
 dependencies {
diff --git a/notification/build.gradle.kts b/notification/build.gradle.kts
index 4550b7c..ed12f94 100644
--- a/notification/build.gradle.kts
+++ b/notification/build.gradle.kts
@@ -1,5 +1,5 @@
 plugins {
-    kotlin("plugin.serialization") version "1.5.21"
+    kotlin("plugin.serialization") version "1.7.20"
 }
 
 dependencies {
diff --git a/persistence/build.gradle.kts b/persistence/build.gradle.kts
index 31995ab..376c73c 100644
--- a/persistence/build.gradle.kts
+++ b/persistence/build.gradle.kts
@@ -1,5 +1,5 @@
 plugins {
-    kotlin("plugin.serialization") version "1.5.21"
+    kotlin("plugin.serialization") version "1.7.20"
 }
 
 dependencies {
diff --git a/recommandation-engine/build.gradle.kts b/recommandation-engine/build.gradle.kts
index 42e3b96..b84c539 100644
--- a/recommandation-engine/build.gradle.kts
+++ b/recommandation-engine/build.gradle.kts
@@ -1,5 +1,5 @@
 plugins {
-    kotlin("plugin.serialization") version "1.5.21"
+    kotlin("plugin.serialization") version "1.7.20"
 }
 
 dependencies {