diff --git a/.drone.yml b/.drone.yml
index 8e3a979..e51b747 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -5,12 +5,12 @@ steps:
   - name: test-online
     image: maven:3-jdk-11
     environment:
-      VAULT_VERSION: 1.3.0
+      VAULT_VERSION: 1.4.0-rc1
     commands:
-      - curl -o vault_1.3.0_linux_amd64.zip https://releases.hashicorp.com/vault/1.3.0/vault_1.3.0_linux_amd64.zip
-      - curl -s https://releases.hashicorp.com/vault/1.3.0/vault_1.3.0_SHA256SUMS | grep linux_amd64 | sha256sum -c
-      - unzip vault_1.3.0_linux_amd64.zip
-      - rm vault_1.3.0_linux_amd64.zip
+      - curl -o vault_1.4.0-rc1_linux_amd64.zip https://releases.hashicorp.com/vault/1.4.0-rc1/vault_1.4.0-rc1_linux_amd64.zip
+      - curl -s https://releases.hashicorp.com/vault/1.4.0-rc1/vault_1.4.0-rc1_SHA256SUMS | grep linux_amd64 | sha256sum -c
+      - unzip vault_1.4.0-rc1_linux_amd64.zip
+      - rm vault_1.4.0-rc1_linux_amd64.zip
       - mv vault /bin/
       - mvn clean test
     when:
diff --git a/.travis.yml b/.travis.yml
index 5f46483..449dfeb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,7 +8,7 @@ addons:
     token:
       secure: "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"
 env:
-  - PATH=$PATH:. VAULT_VERSION=1.3.0
+  - PATH=$PATH:. VAULT_VERSION=1.4.0-rc1
 before_script:
   - |
     if [ "$TRAVIS_BRANCH" = "master" ]; then
diff --git a/README.md b/README.md
index d5f157f..33c0473 100644
--- a/README.md
+++ b/README.md
@@ -32,7 +32,7 @@ Java Vault Connector is a connector library for [Vault](https://www.vaultproject
     * SQL secret handling
     * KV v1 and v2 support
 * Connector Factory with builder pattern
-* Tested against Vault 1.3.0
+* Tested against Vault 1.3.4
 
 
 ## Maven Artifact
diff --git a/src/test/java/de/stklcode/jvault/connector/HTTPVaultConnectorTest.java b/src/test/java/de/stklcode/jvault/connector/HTTPVaultConnectorTest.java
index b9701db..d6728ab 100644
--- a/src/test/java/de/stklcode/jvault/connector/HTTPVaultConnectorTest.java
+++ b/src/test/java/de/stklcode/jvault/connector/HTTPVaultConnectorTest.java
@@ -52,7 +52,7 @@ import static org.junit.jupiter.api.Assumptions.*;
  */
 @Tag("online")
 public class HTTPVaultConnectorTest {
-    private static String VAULT_VERSION = "1.3.0";  // the vault version this test is supposed to run against
+    private static String VAULT_VERSION = "1.4.0-rc1";  // the vault version this test is supposed to run against
     private static final String KEY1 = "E38bkCm0VhUvpdCKGQpcohhD9XmcHJ/2hreOSY019Lho";
     private static final String KEY2 = "O5OHwDleY3IiPdgw61cgHlhsrEm6tVJkrxhF6QAnILd1";
     private static final String KEY3 = "mw7Bm3nbt/UWa/juDjjL2EPQ04kiJ0saC5JEXwJvXYsB";