diff --git a/docs/package.json b/docs/package.json
index 07706522..ce2335c3 100644
--- a/docs/package.json
+++ b/docs/package.json
@@ -2,7 +2,7 @@
 	"dependencies": {
 		"antora": "3.2.0-alpha.6",
 		"@antora/atlas-extension": "1.0.0-alpha.2",
-		"@antora/collector-extension": "1.0.0-beta.2",
+		"@antora/collector-extension": "1.0.0-beta.3",
 		"@asciidoctor/tabs": "1.0.0-beta.6",
 		"@springio/antora-extensions": "1.14.2",
 		"@springio/asciidoctor-extensions": "1.0.0-alpha.14"
diff --git a/spring-cloud-openfeign-core/pom.xml b/spring-cloud-openfeign-core/pom.xml
index d37b5dc4..08baa174 100644
--- a/spring-cloud-openfeign-core/pom.xml
+++ b/spring-cloud-openfeign-core/pom.xml
@@ -189,7 +189,7 @@
 		<dependency>
 			<groupId>io.vavr</groupId>
 			<artifactId>vavr</artifactId>
-			<version>0.10.4</version>
+			<version>0.10.5</version>
 			<scope>test</scope>
 		</dependency>
 		<dependency>
diff --git a/src/checkstyle/checkstyle-suppressions.xml b/src/checkstyle/checkstyle-suppressions.xml
index e3cf17bb..8a6d8271 100644
--- a/src/checkstyle/checkstyle-suppressions.xml
+++ b/src/checkstyle/checkstyle-suppressions.xml
@@ -14,6 +14,8 @@
 	<suppress files=".*Hello.*" checks="RedundantModifier"/>
 	<suppress files=".*test.*" checks="JavadocStyle"/>
 	<suppress files=".*test.*" checks="JavadocVariable"/>
+	<suppress files="[\\/]src[\\/](test|testFixtures)[\\/](java|java21)[\\/]" checks="RegexpSinglelineJava" id="toLowerCaseWithoutLocale"/>
+	<suppress files="[\\/]src[\\/](test|testFixtures)[\\/](java|java21)[\\/]" checks="RegexpSinglelineJava" id="toUpperCaseWithoutLocale"/>
 	<!-- Important -->
 	<suppress files=".*HttpEncoding.*" checks="InterfaceIsTypeCheck" />
 </suppressions>