diff --git a/samples/standalone/contracts/com/example/server/pom.xml b/samples/standalone/contracts/com/example/server/pom.xml
index 5087c52b4e..027755dd1f 100644
--- a/samples/standalone/contracts/com/example/server/pom.xml
+++ b/samples/standalone/contracts/com/example/server/pom.xml
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.3.0.M4</version>
+		<version>2.3.1.RELEASE</version>
 		<relativePath/>
 	</parent>
 
diff --git a/samples/standalone/dsl/http-client/gradle.properties b/samples/standalone/dsl/http-client/gradle.properties
index 57f4854e3e..977f006d66 100644
--- a/samples/standalone/dsl/http-client/gradle.properties
+++ b/samples/standalone/dsl/http-client/gradle.properties
@@ -1,3 +1,3 @@
 org.gradle.daemon=false
 BOM_VERSION=2020.0.0-SNAPSHOT
-bootVersion=2.3.0.M4
\ No newline at end of file
+bootVersion=2.3.1.RELEASE
\ No newline at end of file
diff --git a/samples/standalone/dsl/http-client/pom.xml b/samples/standalone/dsl/http-client/pom.xml
index cacbb24bda..2f75cf0eb2 100644
--- a/samples/standalone/dsl/http-client/pom.xml
+++ b/samples/standalone/dsl/http-client/pom.xml
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.3.0.M4</version>
+		<version>2.3.1.RELEASE</version>
 		<relativePath/>
 	</parent>
 
diff --git a/samples/standalone/dsl/http-server/gradle.properties b/samples/standalone/dsl/http-server/gradle.properties
index 76a283e0e9..4942b4ab42 100644
--- a/samples/standalone/dsl/http-server/gradle.properties
+++ b/samples/standalone/dsl/http-server/gradle.properties
@@ -1,4 +1,4 @@
 org.gradle.daemon=false
 verifierVersion=3.0.0-SNAPSHOT
 BOM_VERSION=2020.0.0-SNAPSHOT
-bootVersion=2.3.0.M4
\ No newline at end of file
+bootVersion=2.3.1.RELEASE
\ No newline at end of file
diff --git a/samples/standalone/dsl/http-server/pom.xml b/samples/standalone/dsl/http-server/pom.xml
index 18ece3d30a..6bc9aef2ea 100644
--- a/samples/standalone/dsl/http-server/pom.xml
+++ b/samples/standalone/dsl/http-server/pom.xml
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.3.0.M4</version>
+		<version>2.3.1.RELEASE</version>
 		<relativePath/>
 	</parent>
 
diff --git a/samples/standalone/restdocs/http-client/gradle.properties b/samples/standalone/restdocs/http-client/gradle.properties
index 76a283e0e9..4942b4ab42 100644
--- a/samples/standalone/restdocs/http-client/gradle.properties
+++ b/samples/standalone/restdocs/http-client/gradle.properties
@@ -1,4 +1,4 @@
 org.gradle.daemon=false
 verifierVersion=3.0.0-SNAPSHOT
 BOM_VERSION=2020.0.0-SNAPSHOT
-bootVersion=2.3.0.M4
\ No newline at end of file
+bootVersion=2.3.1.RELEASE
\ No newline at end of file
diff --git a/samples/standalone/restdocs/http-client/pom.xml b/samples/standalone/restdocs/http-client/pom.xml
index 4c19cae494..fa73ffe2ea 100644
--- a/samples/standalone/restdocs/http-client/pom.xml
+++ b/samples/standalone/restdocs/http-client/pom.xml
@@ -31,7 +31,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.3.0.M4</version>
+		<version>2.3.1.RELEASE</version>
 		<relativePath/>
 	</parent>
 
diff --git a/samples/standalone/restdocs/http-server/gradle.properties b/samples/standalone/restdocs/http-server/gradle.properties
index 76a283e0e9..4942b4ab42 100644
--- a/samples/standalone/restdocs/http-server/gradle.properties
+++ b/samples/standalone/restdocs/http-server/gradle.properties
@@ -1,4 +1,4 @@
 org.gradle.daemon=false
 verifierVersion=3.0.0-SNAPSHOT
 BOM_VERSION=2020.0.0-SNAPSHOT
-bootVersion=2.3.0.M4
\ No newline at end of file
+bootVersion=2.3.1.RELEASE
\ No newline at end of file
diff --git a/samples/standalone/restdocs/http-server/pom.xml b/samples/standalone/restdocs/http-server/pom.xml
index f4f3b3db93..ca714e0184 100644
--- a/samples/standalone/restdocs/http-server/pom.xml
+++ b/samples/standalone/restdocs/http-server/pom.xml
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.3.0.M4</version>
+		<version>2.3.1.RELEASE</version>
 		<relativePath/>
 	</parent>
 
diff --git a/samples/standalone/webclient/http-client/gradle.properties b/samples/standalone/webclient/http-client/gradle.properties
index 76a283e0e9..4942b4ab42 100644
--- a/samples/standalone/webclient/http-client/gradle.properties
+++ b/samples/standalone/webclient/http-client/gradle.properties
@@ -1,4 +1,4 @@
 org.gradle.daemon=false
 verifierVersion=3.0.0-SNAPSHOT
 BOM_VERSION=2020.0.0-SNAPSHOT
-bootVersion=2.3.0.M4
\ No newline at end of file
+bootVersion=2.3.1.RELEASE
\ No newline at end of file
diff --git a/samples/standalone/webclient/http-client/pom.xml b/samples/standalone/webclient/http-client/pom.xml
index 15d8d4a803..776d656983 100644
--- a/samples/standalone/webclient/http-client/pom.xml
+++ b/samples/standalone/webclient/http-client/pom.xml
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.3.0.M4</version>
+		<version>2.3.1.RELEASE</version>
 		<relativePath/>
 	</parent>
 
diff --git a/samples/standalone/webclient/http-server/gradle.properties b/samples/standalone/webclient/http-server/gradle.properties
index 76a283e0e9..4942b4ab42 100644
--- a/samples/standalone/webclient/http-server/gradle.properties
+++ b/samples/standalone/webclient/http-server/gradle.properties
@@ -1,4 +1,4 @@
 org.gradle.daemon=false
 verifierVersion=3.0.0-SNAPSHOT
 BOM_VERSION=2020.0.0-SNAPSHOT
-bootVersion=2.3.0.M4
\ No newline at end of file
+bootVersion=2.3.1.RELEASE
\ No newline at end of file
diff --git a/samples/standalone/webclient/http-server/pom.xml b/samples/standalone/webclient/http-server/pom.xml
index 588c0215c3..c918fa06d1 100644
--- a/samples/standalone/webclient/http-server/pom.xml
+++ b/samples/standalone/webclient/http-server/pom.xml
@@ -14,7 +14,7 @@
 	<parent>
 		<groupId>org.springframework.boot</groupId>
 		<artifactId>spring-boot-starter-parent</artifactId>
-		<version>2.3.0.M4</version>
+		<version>2.3.1.RELEASE</version>
 		<relativePath/>
 	</parent>