diff --git a/.github/workflows/samples-java-client-jdk11.yaml b/.github/workflows/samples-java-client-jdk11.yaml
index 89b0f302128..8977db230f3 100644
--- a/.github/workflows/samples-java-client-jdk11.yaml
+++ b/.github/workflows/samples-java-client-jdk11.yaml
@@ -56,6 +56,7 @@ jobs:
           - samples/client/petstore/java/microprofile-rest-client-3.0-jackson-with-xml
           - samples/client/petstore/java/apache-httpclient
           - samples/client/petstore/java/feign
+          - samples/client/petstore/java/okhttp-gson-awsv4signature
           - samples/openapi3/client/petstore/java/jersey2-java8-special-characters
           - samples/openapi3/client/petstore/java/native
           - samples/client/petstore/java/okhttp-gson-swagger1/
diff --git a/modules/openapi-generator/src/main/resources/Java/libraries/okhttp-gson/auth/AWS4Auth.mustache b/modules/openapi-generator/src/main/resources/Java/libraries/okhttp-gson/auth/AWS4Auth.mustache
index 5e11820e9a1..a9ee5ff646c 100644
--- a/modules/openapi-generator/src/main/resources/Java/libraries/okhttp-gson/auth/AWS4Auth.mustache
+++ b/modules/openapi-generator/src/main/resources/Java/libraries/okhttp-gson/auth/AWS4Auth.mustache
@@ -6,16 +6,20 @@ import {{invokerPackage}}.Pair;
 import {{invokerPackage}}.ApiException;
 
 import java.io.ByteArrayInputStream;
+import java.io.InputStream;
 import java.net.URI;
 import java.net.URISyntaxException;
+import java.nio.charset.StandardCharsets;
 import java.util.Map;
 import java.util.List;
+import java.util.stream.Collectors;
 
 import software.amazon.awssdk.auth.credentials.AnonymousCredentialsProvider;
 import software.amazon.awssdk.auth.credentials.AwsBasicCredentials;
 import software.amazon.awssdk.auth.credentials.AwsCredentials;
 import software.amazon.awssdk.auth.signer.Aws4Signer;
 import software.amazon.awssdk.auth.signer.params.Aws4SignerParams;
+import software.amazon.awssdk.http.ContentStreamProvider;
 import software.amazon.awssdk.http.SdkHttpFullRequest;
 import software.amazon.awssdk.http.SdkHttpMethod;
 import software.amazon.awssdk.regions.Region;
@@ -25,7 +29,7 @@ import okio.Buffer;
 {{>generatedAnnotation}}
 public class AWS4Auth implements Authentication {
 
-  private AWSCredentials credentials;
+  private AwsCredentials credentials;
   private String region;
   private String service;
 
diff --git a/modules/openapi-generator/src/main/resources/Java/libraries/okhttp-gson/build.gradle.mustache b/modules/openapi-generator/src/main/resources/Java/libraries/okhttp-gson/build.gradle.mustache
index f4032d8f7d5..0d0e4cc9481 100644
--- a/modules/openapi-generator/src/main/resources/Java/libraries/okhttp-gson/build.gradle.mustache
+++ b/modules/openapi-generator/src/main/resources/Java/libraries/okhttp-gson/build.gradle.mustache
@@ -121,6 +121,9 @@ dependencies {
     {{#openApiNullable}}
     implementation 'org.openapitools:jackson-databind-nullable:0.2.6'
     {{/openApiNullable}}
+    {{#withAWSV4Signature}}
+    implementation 'software.amazon.awssdk:auth:2.20.157'
+    {{/withAWSV4Signature}}
     {{#hasOAuthMethods}}
     implementation group: 'org.apache.oltu.oauth2', name: 'org.apache.oltu.oauth2.client', version: '1.0.2'
     {{/hasOAuthMethods}}
diff --git a/modules/openapi-generator/src/main/resources/Java/libraries/okhttp-gson/build.sbt.mustache b/modules/openapi-generator/src/main/resources/Java/libraries/okhttp-gson/build.sbt.mustache
index cf50c15c4e8..8d7bd5a68fe 100644
--- a/modules/openapi-generator/src/main/resources/Java/libraries/okhttp-gson/build.sbt.mustache
+++ b/modules/openapi-generator/src/main/resources/Java/libraries/okhttp-gson/build.sbt.mustache
@@ -19,6 +19,9 @@ lazy val root = (project in file(".")).
       {{#openApiNullable}}
       "org.openapitools" % "jackson-databind-nullable" % "0.2.6",
       {{/openApiNullable}}
+      {{#withAWSV4Signature}}
+      "software.amazon.awssdk" % "auth" % "2.20.157",
+      {{/withAWSV4Signature}}
       {{#hasOAuthMethods}}
       "org.apache.oltu.oauth2" % "org.apache.oltu.oauth2.client" % "1.0.2",
       {{/hasOAuthMethods}}
diff --git a/modules/openapi-generator/src/main/resources/Java/libraries/okhttp-gson/pom.mustache b/modules/openapi-generator/src/main/resources/Java/libraries/okhttp-gson/pom.mustache
index 3c1b453e316..2261a4025ea 100644
--- a/modules/openapi-generator/src/main/resources/Java/libraries/okhttp-gson/pom.mustache
+++ b/modules/openapi-generator/src/main/resources/Java/libraries/okhttp-gson/pom.mustache
@@ -375,12 +375,11 @@
             <version>${jackson-databind-nullable-version}</version>
         </dependency>
         {{/openApiNullable}}
-
         {{#withAWSV4Signature}}
         <dependency>
             <groupId>software.amazon.awssdk</groupId>
             <artifactId>auth</artifactId>
-            <version>2.20.120</version>
+            <version>2.20.157</version>
         </dependency>
         {{/withAWSV4Signature}}
         <dependency>
diff --git a/samples/client/echo_api/java/okhttp-gson/pom.xml b/samples/client/echo_api/java/okhttp-gson/pom.xml
index 66a91a82652..47865e769e8 100644
--- a/samples/client/echo_api/java/okhttp-gson/pom.xml
+++ b/samples/client/echo_api/java/okhttp-gson/pom.xml
@@ -300,7 +300,6 @@
             <artifactId>jackson-databind-nullable</artifactId>
             <version>${jackson-databind-nullable-version}</version>
         </dependency>
-
         <dependency>
             <groupId>javax.ws.rs</groupId>
             <artifactId>jsr311-api</artifactId>
diff --git a/samples/client/others/java/okhttp-gson-streaming/pom.xml b/samples/client/others/java/okhttp-gson-streaming/pom.xml
index a3e4248648c..f6bdcbd7b95 100644
--- a/samples/client/others/java/okhttp-gson-streaming/pom.xml
+++ b/samples/client/others/java/okhttp-gson-streaming/pom.xml
@@ -300,7 +300,6 @@
             <artifactId>jackson-databind-nullable</artifactId>
             <version>${jackson-databind-nullable-version}</version>
         </dependency>
-
         <dependency>
             <groupId>javax.ws.rs</groupId>
             <artifactId>jsr311-api</artifactId>
diff --git a/samples/client/petstore/java/okhttp-gson-3.1/pom.xml b/samples/client/petstore/java/okhttp-gson-3.1/pom.xml
index ddf50ad183e..a6037898ab5 100644
--- a/samples/client/petstore/java/okhttp-gson-3.1/pom.xml
+++ b/samples/client/petstore/java/okhttp-gson-3.1/pom.xml
@@ -305,7 +305,6 @@
             <artifactId>jackson-databind-nullable</artifactId>
             <version>${jackson-databind-nullable-version}</version>
         </dependency>
-
         <dependency>
             <groupId>javax.ws.rs</groupId>
             <artifactId>jsr311-api</artifactId>
diff --git a/samples/client/petstore/java/okhttp-gson-awsv4signature/build.gradle b/samples/client/petstore/java/okhttp-gson-awsv4signature/build.gradle
index 50af067a5ab..504ebafa366 100644
--- a/samples/client/petstore/java/okhttp-gson-awsv4signature/build.gradle
+++ b/samples/client/petstore/java/okhttp-gson-awsv4signature/build.gradle
@@ -115,6 +115,7 @@ dependencies {
     implementation 'javax.ws.rs:jsr311-api:1.1.1'
     implementation 'javax.ws.rs:javax.ws.rs-api:2.1.1'
     implementation 'org.openapitools:jackson-databind-nullable:0.2.6'
+    implementation 'software.amazon.awssdk:auth:2.20.157'
     implementation group: 'org.apache.oltu.oauth2', name: 'org.apache.oltu.oauth2.client', version: '1.0.2'
     implementation group: 'org.apache.commons', name: 'commons-lang3', version: '3.12.0'
     implementation "jakarta.annotation:jakarta.annotation-api:$jakarta_annotation_version"
diff --git a/samples/client/petstore/java/okhttp-gson-awsv4signature/build.sbt b/samples/client/petstore/java/okhttp-gson-awsv4signature/build.sbt
index 30f3633352c..b86eb7e785c 100644
--- a/samples/client/petstore/java/okhttp-gson-awsv4signature/build.sbt
+++ b/samples/client/petstore/java/okhttp-gson-awsv4signature/build.sbt
@@ -17,6 +17,7 @@ lazy val root = (project in file(".")).
       "javax.ws.rs" % "jsr311-api" % "1.1.1",
       "javax.ws.rs" % "javax.ws.rs-api" % "2.1.1",
       "org.openapitools" % "jackson-databind-nullable" % "0.2.6",
+      "software.amazon.awssdk" % "auth" % "2.20.157",
       "org.apache.oltu.oauth2" % "org.apache.oltu.oauth2.client" % "1.0.2",
       "io.gsonfire" % "gson-fire" % "1.8.5" % "compile",
       "jakarta.annotation" % "jakarta.annotation-api" % "1.3.5" % "compile",
diff --git a/samples/client/petstore/java/okhttp-gson-awsv4signature/pom.xml b/samples/client/petstore/java/okhttp-gson-awsv4signature/pom.xml
index 8d77c41bf36..2816a3509d8 100644
--- a/samples/client/petstore/java/okhttp-gson-awsv4signature/pom.xml
+++ b/samples/client/petstore/java/okhttp-gson-awsv4signature/pom.xml
@@ -305,11 +305,10 @@
             <artifactId>jackson-databind-nullable</artifactId>
             <version>${jackson-databind-nullable-version}</version>
         </dependency>
-
         <dependency>
             <groupId>software.amazon.awssdk</groupId>
             <artifactId>auth</artifactId>
-            <version>2.20.120</version>
+            <version>2.20.157</version>
         </dependency>
         <dependency>
             <groupId>javax.ws.rs</groupId>
diff --git a/samples/client/petstore/java/okhttp-gson-awsv4signature/src/main/java/org/openapitools/client/auth/AWS4Auth.java b/samples/client/petstore/java/okhttp-gson-awsv4signature/src/main/java/org/openapitools/client/auth/AWS4Auth.java
index 779e1605736..7ea08fba976 100644
--- a/samples/client/petstore/java/okhttp-gson-awsv4signature/src/main/java/org/openapitools/client/auth/AWS4Auth.java
+++ b/samples/client/petstore/java/okhttp-gson-awsv4signature/src/main/java/org/openapitools/client/auth/AWS4Auth.java
@@ -17,16 +17,20 @@ import org.openapitools.client.Pair;
 import org.openapitools.client.ApiException;
 
 import java.io.ByteArrayInputStream;
+import java.io.InputStream;
 import java.net.URI;
 import java.net.URISyntaxException;
+import java.nio.charset.StandardCharsets;
 import java.util.Map;
 import java.util.List;
+import java.util.stream.Collectors;
 
 import software.amazon.awssdk.auth.credentials.AnonymousCredentialsProvider;
 import software.amazon.awssdk.auth.credentials.AwsBasicCredentials;
 import software.amazon.awssdk.auth.credentials.AwsCredentials;
 import software.amazon.awssdk.auth.signer.Aws4Signer;
 import software.amazon.awssdk.auth.signer.params.Aws4SignerParams;
+import software.amazon.awssdk.http.ContentStreamProvider;
 import software.amazon.awssdk.http.SdkHttpFullRequest;
 import software.amazon.awssdk.http.SdkHttpMethod;
 import software.amazon.awssdk.regions.Region;
@@ -36,7 +40,7 @@ import okio.Buffer;
 @javax.annotation.Generated(value = "org.openapitools.codegen.languages.JavaClientCodegen")
 public class AWS4Auth implements Authentication {
 
-  private AWSCredentials credentials;
+  private AwsCredentials credentials;
   private String region;
   private String service;
 
diff --git a/samples/client/petstore/java/okhttp-gson-dynamicOperations/pom.xml b/samples/client/petstore/java/okhttp-gson-dynamicOperations/pom.xml
index 5e90d1fb12e..7c1dde4a9db 100644
--- a/samples/client/petstore/java/okhttp-gson-dynamicOperations/pom.xml
+++ b/samples/client/petstore/java/okhttp-gson-dynamicOperations/pom.xml
@@ -310,7 +310,6 @@
             <artifactId>jackson-databind-nullable</artifactId>
             <version>${jackson-databind-nullable-version}</version>
         </dependency>
-
         <dependency>
             <groupId>javax.ws.rs</groupId>
             <artifactId>jsr311-api</artifactId>
diff --git a/samples/client/petstore/java/okhttp-gson-group-parameter/pom.xml b/samples/client/petstore/java/okhttp-gson-group-parameter/pom.xml
index 570257c5f84..39726ef1a5a 100644
--- a/samples/client/petstore/java/okhttp-gson-group-parameter/pom.xml
+++ b/samples/client/petstore/java/okhttp-gson-group-parameter/pom.xml
@@ -305,7 +305,6 @@
             <artifactId>jackson-databind-nullable</artifactId>
             <version>${jackson-databind-nullable-version}</version>
         </dependency>
-
         <dependency>
             <groupId>javax.ws.rs</groupId>
             <artifactId>jsr311-api</artifactId>
diff --git a/samples/client/petstore/java/okhttp-gson-nullable-required/pom.xml b/samples/client/petstore/java/okhttp-gson-nullable-required/pom.xml
index 7550ed608dd..5e1c8d86654 100644
--- a/samples/client/petstore/java/okhttp-gson-nullable-required/pom.xml
+++ b/samples/client/petstore/java/okhttp-gson-nullable-required/pom.xml
@@ -305,7 +305,6 @@
             <artifactId>jackson-databind-nullable</artifactId>
             <version>${jackson-databind-nullable-version}</version>
         </dependency>
-
         <dependency>
             <groupId>javax.ws.rs</groupId>
             <artifactId>jsr311-api</artifactId>
diff --git a/samples/client/petstore/java/okhttp-gson-parcelableModel/pom.xml b/samples/client/petstore/java/okhttp-gson-parcelableModel/pom.xml
index c3f34dcbd18..7d329eddb5c 100644
--- a/samples/client/petstore/java/okhttp-gson-parcelableModel/pom.xml
+++ b/samples/client/petstore/java/okhttp-gson-parcelableModel/pom.xml
@@ -312,7 +312,6 @@
             <artifactId>jackson-databind-nullable</artifactId>
             <version>${jackson-databind-nullable-version}</version>
         </dependency>
-
         <dependency>
             <groupId>javax.ws.rs</groupId>
             <artifactId>jsr311-api</artifactId>
diff --git a/samples/client/petstore/java/okhttp-gson-swagger1/pom.xml b/samples/client/petstore/java/okhttp-gson-swagger1/pom.xml
index 1a1e48ea451..ca06f5bb59f 100644
--- a/samples/client/petstore/java/okhttp-gson-swagger1/pom.xml
+++ b/samples/client/petstore/java/okhttp-gson-swagger1/pom.xml
@@ -310,7 +310,6 @@
             <artifactId>jackson-databind-nullable</artifactId>
             <version>${jackson-databind-nullable-version}</version>
         </dependency>
-
         <dependency>
             <groupId>javax.ws.rs</groupId>
             <artifactId>jsr311-api</artifactId>
diff --git a/samples/client/petstore/java/okhttp-gson-swagger2/pom.xml b/samples/client/petstore/java/okhttp-gson-swagger2/pom.xml
index b2db3f3da48..3ef2bee4970 100644
--- a/samples/client/petstore/java/okhttp-gson-swagger2/pom.xml
+++ b/samples/client/petstore/java/okhttp-gson-swagger2/pom.xml
@@ -310,7 +310,6 @@
             <artifactId>jackson-databind-nullable</artifactId>
             <version>${jackson-databind-nullable-version}</version>
         </dependency>
-
         <dependency>
             <groupId>javax.ws.rs</groupId>
             <artifactId>jsr311-api</artifactId>
diff --git a/samples/client/petstore/java/okhttp-gson/pom.xml b/samples/client/petstore/java/okhttp-gson/pom.xml
index a50f71b2408..7831b90f739 100644
--- a/samples/client/petstore/java/okhttp-gson/pom.xml
+++ b/samples/client/petstore/java/okhttp-gson/pom.xml
@@ -305,7 +305,6 @@
             <artifactId>jackson-databind-nullable</artifactId>
             <version>${jackson-databind-nullable-version}</version>
         </dependency>
-
         <dependency>
             <groupId>javax.ws.rs</groupId>
             <artifactId>jsr311-api</artifactId>