diff --git a/src/main/java/de/stklcode/jvault/connector/HTTPVaultConnector.java b/src/main/java/de/stklcode/jvault/connector/HTTPVaultConnector.java
index 2573a59..6e23abc 100644
--- a/src/main/java/de/stklcode/jvault/connector/HTTPVaultConnector.java
+++ b/src/main/java/de/stklcode/jvault/connector/HTTPVaultConnector.java
@@ -50,6 +50,7 @@ public class HTTPVaultConnector implements VaultConnector {
     private static final String PATH_SEAL = "sys/seal";
     private static final String PATH_UNSEAL = "sys/unseal";
     private static final String PATH_INIT = "sys/init";
+    private static final String PATH_RENEW = "sys/renew";
     private static final String PATH_AUTH = "sys/auth";
     private static final String PATH_TOKEN = "auth/token";
     private static final String PATH_LOOKUP = "/lookup";
@@ -541,9 +542,22 @@ public class HTTPVaultConnector implements VaultConnector {
     }
 
     @Override
-    public VaultResponse renew(String leaseID, Integer seconds) {
-        /* TODO */
-        return null;
+    public SecretResponse renew(String leaseID, Integer increment) throws VaultConnectorException {
+        if (!isAuthorized())
+            throw new AuthorizationRequiredException();
+
+        Map<String, String> payload = new HashMap<>();
+        payload.put("lease_id", leaseID);
+        if (increment != null)
+            payload.put("increment", increment.toString());
+
+        /* Request HTTP response and parse Secret */
+        try {
+            String response = requestPut(PATH_RENEW, payload);
+            return jsonMapper.readValue(response, SecretResponse.class);
+        } catch (IOException e) {
+            throw new InvalidResponseException("Unable to parse response", e);
+        }
     }
 
     @Override
@@ -587,6 +601,23 @@ public class HTTPVaultConnector implements VaultConnector {
         }
     }
 
+    @Override
+    public TokenResponse lookupToken(final String token) throws VaultConnectorException {
+        if (!isAuthorized())
+            throw new AuthorizationRequiredException();
+        /* Request HTTP response and parse Secret */
+        try {
+            String response = requestGet(PATH_TOKEN + "/lookup/" + token, new HashMap<>());
+            return jsonMapper.readValue(response, TokenResponse.class);
+        } catch (IOException e) {
+            throw new InvalidResponseException("Unable to parse response", e);
+        } catch (URISyntaxException ignored) {
+            /* this should never occur and may leak sensible information */
+            throw new InvalidRequestException("Invalid URI format.");
+        }
+
+    }
+
 
     /**
      * Execute HTTP request using POST method.
diff --git a/src/main/java/de/stklcode/jvault/connector/VaultConnector.java b/src/main/java/de/stklcode/jvault/connector/VaultConnector.java
index c7d2fd9..829ff7b 100644
--- a/src/main/java/de/stklcode/jvault/connector/VaultConnector.java
+++ b/src/main/java/de/stklcode/jvault/connector/VaultConnector.java
@@ -16,6 +16,7 @@
 
 package de.stklcode.jvault.connector;
 
+import de.stklcode.jvault.connector.exception.AuthorizationRequiredException;
 import de.stklcode.jvault.connector.exception.VaultConnectorException;
 import de.stklcode.jvault.connector.model.*;
 import de.stklcode.jvault.connector.model.response.*;
@@ -412,11 +413,21 @@ public interface VaultConnector {
     /**
      * Renew lease with given ID.
      *
-     * @param leaseID the lase ID
-     * @param seconds number of seconds to extend lease time
+     * @param leaseID   the lase ID
      * @return Renewed lease
      */
-    VaultResponse renew(final String leaseID, final Integer seconds);
+    default SecretResponse renew(final String leaseID) throws VaultConnectorException {
+        return renew(leaseID, null);
+    }
+
+    /**
+     * Renew lease with given ID.
+     *
+     * @param leaseID   the lase ID
+     * @param increment number of seconds to extend lease time
+     * @return Renewed lease
+     */
+    SecretResponse renew(final String leaseID, final Integer increment) throws VaultConnectorException;
 
     /**
      * Create a new token.
@@ -446,4 +457,13 @@ public interface VaultConnector {
      * @throws VaultConnectorException on error
      */
     AuthResponse createToken(final Token token, final String role) throws VaultConnectorException;
+
+    /**
+     * Lookup token information.
+     *
+     * @param token the token
+     * @return the result response
+     * @throws VaultConnectorException on error
+     */
+    TokenResponse lookupToken(final String token) throws VaultConnectorException;
 }
diff --git a/src/test/java/de/stklcode/jvault/connector/HTTPVaultConnectorTest.java b/src/test/java/de/stklcode/jvault/connector/HTTPVaultConnectorTest.java
index 35bcf8e..667d6e0 100644
--- a/src/test/java/de/stklcode/jvault/connector/HTTPVaultConnectorTest.java
+++ b/src/test/java/de/stklcode/jvault/connector/HTTPVaultConnectorTest.java
@@ -531,7 +531,7 @@ public class HTTPVaultConnectorTest {
      * Test deletion of secrets.
      */
     @Test
-    public void deleteTest() {
+    public void deleteSecretTest() {
         authUser();
         assumeTrue(connector.isAuthorized());