diff --git a/acme4j-client/src/main/java/org/shredzone/acme4j/provider/letsencrypt/LetsEncryptAcmeProvider.java b/acme4j-client/src/main/java/org/shredzone/acme4j/provider/letsencrypt/LetsEncryptAcmeProvider.java
index e9501003..1359fd88 100644
--- a/acme4j-client/src/main/java/org/shredzone/acme4j/provider/letsencrypt/LetsEncryptAcmeProvider.java
+++ b/acme4j-client/src/main/java/org/shredzone/acme4j/provider/letsencrypt/LetsEncryptAcmeProvider.java
@@ -33,8 +33,8 @@ import org.shredzone.acme4j.provider.AcmeProvider;
  */
 public class LetsEncryptAcmeProvider extends AbstractAcmeProvider {
 
-    private static final String V01_DIRECTORY_URL = "https://acme-v01.api.letsencrypt.org/directory";
-    private static final String STAGING_DIRECTORY_URL = "https://acme-staging.api.letsencrypt.org/directory";
+    private static final String V02_DIRECTORY_URL = "https://acme-v02.api.letsencrypt.org/directory";
+    private static final String STAGING_DIRECTORY_URL = "https://acme-staging-v02.api.letsencrypt.org/directory";
 
     @Override
     public boolean accepts(URI serverUri) {
@@ -46,8 +46,8 @@ public class LetsEncryptAcmeProvider extends AbstractAcmeProvider {
     public URL resolve(URI serverUri) {
         String path = serverUri.getPath();
         String directoryUrl;
-        if (path == null || "".equals(path) || "/".equals(path) || "/v01".equals(path)) {
-            directoryUrl = V01_DIRECTORY_URL;
+        if (path == null || "".equals(path) || "/".equals(path) || "/v02".equals(path)) {
+            directoryUrl = V02_DIRECTORY_URL;
         } else if ("/staging".equals(path)) {
             directoryUrl = STAGING_DIRECTORY_URL;
         } else {
diff --git a/acme4j-client/src/test/java/org/shredzone/acme4j/provider/letsencrypt/LetsEncryptAcmeProviderTest.java b/acme4j-client/src/test/java/org/shredzone/acme4j/provider/letsencrypt/LetsEncryptAcmeProviderTest.java
index 973f8930..19dd32b6 100644
--- a/acme4j-client/src/test/java/org/shredzone/acme4j/provider/letsencrypt/LetsEncryptAcmeProviderTest.java
+++ b/acme4j-client/src/test/java/org/shredzone/acme4j/provider/letsencrypt/LetsEncryptAcmeProviderTest.java
@@ -27,8 +27,8 @@ import org.junit.Test;
  */
 public class LetsEncryptAcmeProviderTest {
 
-    private static final String V01_DIRECTORY_URL = "https://acme-v01.api.letsencrypt.org/directory";
-    private static final String STAGING_DIRECTORY_URL = "https://acme-staging.api.letsencrypt.org/directory";
+    private static final String V02_DIRECTORY_URL = "https://acme-v02.api.letsencrypt.org/directory";
+    private static final String STAGING_DIRECTORY_URL = "https://acme-staging-v02.api.letsencrypt.org/directory";
 
     /**
      * Tests if the provider accepts the correct URIs.
@@ -40,7 +40,7 @@ public class LetsEncryptAcmeProviderTest {
         assertThat(provider.accepts(new URI("acme://letsencrypt.org")), is(true));
         assertThat(provider.accepts(new URI("acme://letsencrypt.org/")), is(true));
         assertThat(provider.accepts(new URI("acme://letsencrypt.org/staging")), is(true));
-        assertThat(provider.accepts(new URI("acme://letsencrypt.org/v01")), is(true));
+        assertThat(provider.accepts(new URI("acme://letsencrypt.org/v02")), is(true));
         assertThat(provider.accepts(new URI("acme://example.com")), is(false));
         assertThat(provider.accepts(new URI("http://example.com/acme")), is(false));
         assertThat(provider.accepts(new URI("https://example.com/acme")), is(false));
@@ -53,9 +53,9 @@ public class LetsEncryptAcmeProviderTest {
     public void testResolve() throws URISyntaxException {
         LetsEncryptAcmeProvider provider = new LetsEncryptAcmeProvider();
 
-        assertThat(provider.resolve(new URI("acme://letsencrypt.org")), is(url(V01_DIRECTORY_URL)));
-        assertThat(provider.resolve(new URI("acme://letsencrypt.org/")), is(url(V01_DIRECTORY_URL)));
-        assertThat(provider.resolve(new URI("acme://letsencrypt.org/v01")), is(url(V01_DIRECTORY_URL)));
+        assertThat(provider.resolve(new URI("acme://letsencrypt.org")), is(url(V02_DIRECTORY_URL)));
+        assertThat(provider.resolve(new URI("acme://letsencrypt.org/")), is(url(V02_DIRECTORY_URL)));
+        assertThat(provider.resolve(new URI("acme://letsencrypt.org/v02")), is(url(V02_DIRECTORY_URL)));
         assertThat(provider.resolve(new URI("acme://letsencrypt.org/staging")), is(url(STAGING_DIRECTORY_URL)));
 
         try {