diff --git a/batch-rest-repository/build.gradle.kts b/batch-rest-repository/build.gradle.kts
index 967f6ee..7ec9ea6 100644
--- a/batch-rest-repository/build.gradle.kts
+++ b/batch-rest-repository/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
     id("io.spring.dependency-management") version "1.1.7"
 }
 
diff --git a/batch-skip-step/build.gradle.kts b/batch-skip-step/build.gradle.kts
index 4b03d08..953397a 100644
--- a/batch-skip-step/build.gradle.kts
+++ b/batch-skip-step/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
     id("io.spring.dependency-management") version "1.1.7"
 }
 
diff --git a/build.gradle.kts b/build.gradle.kts
index f8c027a..0e5eee5 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -2,7 +2,7 @@ import org.springframework.boot.gradle.plugin.SpringBootPlugin
 
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7" apply false
+    id("org.springframework.boot") version "4.0.0" apply false
     id("io.spring.dependency-management") version "1.1.7"
     id("org.sonarqube") version "7.1.0.6387"
     id("jacoco-report-aggregation")
diff --git a/cloud-jdbc-env-repo/build.gradle.kts b/cloud-jdbc-env-repo/build.gradle.kts
index 1365b13..cc66948 100644
--- a/cloud-jdbc-env-repo/build.gradle.kts
+++ b/cloud-jdbc-env-repo/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
     id("io.spring.dependency-management") version "1.1.7"
 }
 
diff --git a/data-domain-events/build.gradle.kts b/data-domain-events/build.gradle.kts
index 86a7172..43a17cf 100644
--- a/data-domain-events/build.gradle.kts
+++ b/data-domain-events/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
     id("io.spring.dependency-management") version "1.1.7"
 }
 
diff --git a/data-envers-audit/build.gradle.kts b/data-envers-audit/build.gradle.kts
index a67ef35..5538a9f 100644
--- a/data-envers-audit/build.gradle.kts
+++ b/data-envers-audit/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
     id("io.spring.dependency-management") version "1.1.7"
 }
 
diff --git a/data-jdbc-audit/build.gradle.kts b/data-jdbc-audit/build.gradle.kts
index d99dfab..8e647d1 100644
--- a/data-jdbc-audit/build.gradle.kts
+++ b/data-jdbc-audit/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
     id("io.spring.dependency-management") version "1.1.7"
 }
 
diff --git a/data-jdbc-schema-generation/build.gradle.kts b/data-jdbc-schema-generation/build.gradle.kts
index 9f2c6af..36186f1 100644
--- a/data-jdbc-schema-generation/build.gradle.kts
+++ b/data-jdbc-schema-generation/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
     id("io.spring.dependency-management") version "1.1.7"
 }
 
diff --git a/data-jpa-audit/build.gradle.kts b/data-jpa-audit/build.gradle.kts
index 65c861c..afeee0e 100644
--- a/data-jpa-audit/build.gradle.kts
+++ b/data-jpa-audit/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
     id("io.spring.dependency-management") version "1.1.7"
 }
 
diff --git a/data-jpa-event/build.gradle.kts b/data-jpa-event/build.gradle.kts
index 7bdc163..87a5ec3 100644
--- a/data-jpa-event/build.gradle.kts
+++ b/data-jpa-event/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
     id("io.spring.dependency-management") version "1.1.7"
 }
 
diff --git a/data-jpa-filtered-query/build.gradle.kts b/data-jpa-filtered-query/build.gradle.kts
index 65c861c..afeee0e 100644
--- a/data-jpa-filtered-query/build.gradle.kts
+++ b/data-jpa-filtered-query/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
     id("io.spring.dependency-management") version "1.1.7"
 }
 
diff --git a/data-jpa-hibernate-cache/build.gradle.kts b/data-jpa-hibernate-cache/build.gradle.kts
index 80c6651..697ead9 100644
--- a/data-jpa-hibernate-cache/build.gradle.kts
+++ b/data-jpa-hibernate-cache/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
 	java
-	id("org.springframework.boot") version "3.5.7"
+	id("org.springframework.boot") version "4.0.0"
 	id("io.spring.dependency-management") version "1.1.7"
 }
 
diff --git a/data-mongodb-audit/build.gradle.kts b/data-mongodb-audit/build.gradle.kts
index 0a0874b..5fb88b0 100644
--- a/data-mongodb-audit/build.gradle.kts
+++ b/data-mongodb-audit/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
     id("io.spring.dependency-management") version "1.1.7"
 }
 
diff --git a/data-mongodb-full-text-search/build.gradle.kts b/data-mongodb-full-text-search/build.gradle.kts
index 0a0874b..5fb88b0 100644
--- a/data-mongodb-full-text-search/build.gradle.kts
+++ b/data-mongodb-full-text-search/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
     id("io.spring.dependency-management") version "1.1.7"
 }
 
diff --git a/data-mongodb-tc-data-load/build.gradle.kts b/data-mongodb-tc-data-load/build.gradle.kts
index 3b9aa08..e884a3c 100644
--- a/data-mongodb-tc-data-load/build.gradle.kts
+++ b/data-mongodb-tc-data-load/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
     id("io.spring.dependency-management") version "1.1.7"
 }
 
diff --git a/data-mongodb-transactional/build.gradle.kts b/data-mongodb-transactional/build.gradle.kts
index 1a614a1..271809c 100644
--- a/data-mongodb-transactional/build.gradle.kts
+++ b/data-mongodb-transactional/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
     id("io.spring.dependency-management") version "1.1.7"
 }
 
diff --git a/data-redis-cache/build.gradle.kts b/data-redis-cache/build.gradle.kts
index 7cded78..adba3ee 100644
--- a/data-redis-cache/build.gradle.kts
+++ b/data-redis-cache/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
     id("io.spring.dependency-management") version "1.1.7"
 }
 
diff --git a/data-repository-definition/build.gradle.kts b/data-repository-definition/build.gradle.kts
index da037a3..ec44d3c 100644
--- a/data-repository-definition/build.gradle.kts
+++ b/data-repository-definition/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
     id("io.spring.dependency-management") version "1.1.7"
 }
 
diff --git a/data-rest-composite-id/build.gradle.kts b/data-rest-composite-id/build.gradle.kts
index 344efc2..ff84300 100644
--- a/data-rest-composite-id/build.gradle.kts
+++ b/data-rest-composite-id/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
     id("io.spring.dependency-management") version "1.1.7"
 }
 
diff --git a/data-rest-validation/build.gradle.kts b/data-rest-validation/build.gradle.kts
index 429c4cc..979564d 100644
--- a/data-rest-validation/build.gradle.kts
+++ b/data-rest-validation/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
     id("io.spring.dependency-management") version "1.1.7"
 }
 
diff --git a/graphql/build.gradle.kts b/graphql/build.gradle.kts
index d41f207..adf60f4 100644
--- a/graphql/build.gradle.kts
+++ b/graphql/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
     id("io.spring.dependency-management") version "1.1.7"
 }
 
diff --git a/jooq/build.gradle.kts b/jooq/build.gradle.kts
index 1a94bbf..33283ad 100644
--- a/jooq/build.gradle.kts
+++ b/jooq/build.gradle.kts
@@ -3,7 +3,7 @@ import org.jooq.meta.kotlin.*
 
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
     id("io.spring.dependency-management") version "1.1.7"
     id("nu.studer.jooq") version "10.1.1"
 }
diff --git a/modulith/build.gradle.kts b/modulith/build.gradle.kts
index e3be53c..5d316bf 100644
--- a/modulith/build.gradle.kts
+++ b/modulith/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
     id("io.spring.dependency-management") version "1.1.7"
 }
 
diff --git a/test-execution-listeners/build.gradle.kts b/test-execution-listeners/build.gradle.kts
index 0a0874b..5fb88b0 100644
--- a/test-execution-listeners/build.gradle.kts
+++ b/test-execution-listeners/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
     id("io.spring.dependency-management") version "1.1.7"
 }
 
diff --git a/test-rest-assured/build.gradle.kts b/test-rest-assured/build.gradle.kts
index 7e676fb..13585ec 100644
--- a/test-rest-assured/build.gradle.kts
+++ b/test-rest-assured/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
     id("io.spring.dependency-management") version "1.1.7"
 }
 
diff --git a/test-slice-tests-rest/build.gradle.kts b/test-slice-tests-rest/build.gradle.kts
index 695922f..dc5e260 100644
--- a/test-slice-tests-rest/build.gradle.kts
+++ b/test-slice-tests-rest/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
     id("io.spring.dependency-management") version "1.1.7"
 }
 
diff --git a/web-rest-client/build.gradle.kts b/web-rest-client/build.gradle.kts
index 2f02566..b9cd735 100644
--- a/web-rest-client/build.gradle.kts
+++ b/web-rest-client/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
     id("io.spring.dependency-management") version "1.1.7"
 }
 
diff --git a/web-thymeleaf-xss/build.gradle.kts b/web-thymeleaf-xss/build.gradle.kts
index 838b545..5c9c0b0 100644
--- a/web-thymeleaf-xss/build.gradle.kts
+++ b/web-thymeleaf-xss/build.gradle.kts
@@ -1,6 +1,6 @@
 plugins {
     java
-    id("org.springframework.boot") version "3.5.7"
+    id("org.springframework.boot") version "4.0.0"
     id("io.spring.dependency-management") version "1.1.7"
 }