diff --git a/.github/ISSUE_TEMPLATE/feature_request.md b/.github/ISSUE_TEMPLATE/feature_request.md
index dd246e52..c4c1599d 100644
--- a/.github/ISSUE_TEMPLATE/feature_request.md
+++ b/.github/ISSUE_TEMPLATE/feature_request.md
@@ -1,7 +1,7 @@
 ---
 name: Feature request
 about: Suggest an idea for this project
-title: "[IMROVEMENT] "
+title: "[IMPROVEMENT] "
 labels: enhancement
 assignees: ''
 
diff --git a/README.md b/README.md
index 88894a2f..8690b4a9 100644
--- a/README.md
+++ b/README.md
@@ -48,7 +48,7 @@ Gradle:
 
 ```
 dependencies {
-    implementation 'io.github.jopenlibs:vault-java-driver:5.2.0'
+    implementation 'io.github.jopenlibs:vault-java-driver:5.3.0'
 }
 ```
 
@@ -58,7 +58,7 @@ Maven:
 <dependency>
     <groupId>io.github.jopenlibs</groupId>
     <artifactId>vault-java-driver</artifactId>
-    <version>5.2.0</version>
+    <version>5.3.0</version>
 </dependency>
 ```
 
@@ -310,7 +310,12 @@ and may require modifications in your code to migrate. Changes to the minor vers
 number) should represent non-breaking changes. The third number represents any very minor bugfix
 patches.
 
-* **5.2.0**:  This release contains the following updates:
+* **5.3.0**: This release contains the following updates:
+    * Created sys namespace [PR #21](https://github.com/jopenlibs/vault-java-driver/pull/25) 
+    * Add custom Vault Authentication Path when using k8s login method [(PR #27)](https://github.com/jopenlibs/vault-java-driver/pull/27)
+    * Parametrized integration tests [(PR #21)](https://github.com/jopenlibs/vault-java-driver/pull/21) 
+    * Fix Leases section [(PR #18)](https://github.com/jopenlibs/vault-java-driver/pull/18)
+* **5.2.0**: This release contains the following updates:
     * Move code packages and maven groupdId from `com.bettercloud`
       to `io.github.jopenlibs`. [(PR #2)](https://github.com/jopenlibs/vault-java-driver/pull/2)
     * Fix and refactoring data wrapping, add integration tests with the last Vault version (vault
diff --git a/build.gradle b/build.gradle
index 6be2e3e3..efdd6a19 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,7 +5,7 @@ apply plugin: 'checkstyle'
 
 group 'io.github.jopenlibs'
 archivesBaseName = 'vault-java-driver'
-version '5.3.0-SNAPSHOT'
+version '5.3.0'
 
 // This project is actually limited to Java 8 compatibility.  See below.
 sourceCompatibility = 9
diff --git a/src/test-integration/java/io/github/jopenlibs/vault/util/VaultAgentContainer.java b/src/test-integration/java/io/github/jopenlibs/vault/util/VaultAgentContainer.java
index 8935f795..803582e8 100644
--- a/src/test-integration/java/io/github/jopenlibs/vault/util/VaultAgentContainer.java
+++ b/src/test-integration/java/io/github/jopenlibs/vault/util/VaultAgentContainer.java
@@ -5,6 +5,7 @@
 import io.github.jopenlibs.vault.VaultConfig;
 import io.github.jopenlibs.vault.VaultException;
 import java.nio.file.Path;
+import java.util.Optional;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.testcontainers.containers.BindMode;
@@ -20,6 +21,8 @@
 public class VaultAgentContainer extends GenericContainer<VaultAgentContainer> implements
         TestConstants, TestLifecycleAware {
 
+    public static final String VAULT_DEFAULT_IMAGE = "vault";
+    public static final String VAULT_DEFAULT_TAG = "latest";
     private static final Logger LOGGER = LoggerFactory.getLogger(VaultAgentContainer.class);
 
     /**
@@ -28,7 +31,8 @@ public class VaultAgentContainer extends GenericContainer<VaultAgentContainer> i
     public VaultAgentContainer(
             Path roleId,
             Path secretId) {
-        super("vault:1.11.4");
+        super(VAULT_DEFAULT_IMAGE + ":" + Optional.ofNullable(
+                System.getenv("VAULT_VERSION")).orElse(VAULT_DEFAULT_TAG));
         this.withNetwork(CONTAINER_NETWORK)
                 .withNetworkAliases("agent")
                 .withClasspathResourceMapping("/agent.hcl", AGENT_CONFIG_FILE, BindMode.READ_ONLY)
diff --git a/src/test-integration/resources/libressl.conf b/src/test-integration/resources/libressl.conf
index 6b90efb9..652ffb8d 100644
--- a/src/test-integration/resources/libressl.conf
+++ b/src/test-integration/resources/libressl.conf
@@ -8,8 +8,8 @@ certificate = /vault/config/ssl/root-cert.pem
 database = /vault/config/ssl/certindex
 private_key = /vault/config/ssl/root-privkey.pem
 serial = /vault/config/ssl/serialfile
-default_days = 365
-default_md = sha1
+default_days = 3650
+default_md = sha256
 policy = myca_policy
 x509_extensions = myca_extensions
 copy_extensions = copy
diff --git a/src/test-integration/resources/startup.sh b/src/test-integration/resources/startup.sh
index 9dade6e6..3f5051b5 100644
--- a/src/test-integration/resources/startup.sh
+++ b/src/test-integration/resources/startup.sh
@@ -17,10 +17,20 @@ rm -Rf *
 cp ../libressl.conf .
 
 # Create a CA root certificate and key
-openssl req -newkey rsa:2048 -days 3650 -x509 -nodes -out root-cert.pem -keyout root-privkey.pem -subj '/C=US/ST=GA/L=Atlanta/O=BetterCloud/CN=localhost'
+openssl req -newkey rsa:4096 \
+    -days 3650 \
+    -x509 \
+    -nodes \
+    -out root-cert.pem \
+    -keyout root-privkey.pem \
+    -subj '/C=US/ST=GA/L=Atlanta/O=BetterCloud/CN=localhost'
 
 # Create a private key, and a certificate-signing request
-openssl req -newkey rsa:1024 -nodes -out vault-csr.pem -keyout vault-privkey.pem -subj '/C=US/ST=GA/L=Atlanta/O=BetterCloud/CN=localhost'
+openssl req -newkey rsa:4096 \
+    -nodes \
+    -out vault-csr.pem \
+    -keyout vault-privkey.pem \
+    -subj '/C=US/ST=GA/L=Atlanta/O=BetterCloud/CN=localhost'
 
 # Create an X509 certificate for the Vault server
 echo 000a > serialfile