diff --git a/invoice/build.gradle b/invoice/build.gradle
index cfb151f..6b3c652 100644
--- a/invoice/build.gradle
+++ b/invoice/build.gradle
@@ -5,7 +5,7 @@ buildscript {
     repositories {
         mavenLocal()
         mavenCentral()
-        maven { url "http://repo.spring.io/plugins-release" }
+        maven { url "https://repo.spring.io/plugins-release" }
         maven { url "https://plugins.gradle.org/m2/" }
     }
     dependencies {
diff --git a/notification/build.gradle b/notification/build.gradle
index 7a96ead..0b8e903 100644
--- a/notification/build.gradle
+++ b/notification/build.gradle
@@ -5,7 +5,7 @@ buildscript {
     repositories {
         mavenLocal()
         mavenCentral()
-        maven { url "http://repo.spring.io/plugins-release" }
+        maven { url "https://repo.spring.io/plugins-release" }
         maven { url "https://plugins.gradle.org/m2/" }
     }
     dependencies {
diff --git a/store/build.gradle b/store/build.gradle
index 31053fc..10913c9 100644
--- a/store/build.gradle
+++ b/store/build.gradle
@@ -5,7 +5,7 @@ buildscript {
     repositories {
         mavenLocal()
         mavenCentral()
-        maven { url "http://repo.spring.io/plugins-release" }
+        maven { url "https://repo.spring.io/plugins-release" }
         maven { url "https://plugins.gradle.org/m2/" }
     }
     dependencies {