diff --git a/deployment/src/main/java/io/quarkus/vault/deployment/DevServicesVaultProcessor.java b/deployment/src/main/java/io/quarkus/vault/deployment/DevServicesVaultProcessor.java
index 443505a9..706044cb 100644
--- a/deployment/src/main/java/io/quarkus/vault/deployment/DevServicesVaultProcessor.java
+++ b/deployment/src/main/java/io/quarkus/vault/deployment/DevServicesVaultProcessor.java
@@ -182,7 +182,7 @@ private static class VaultInstance {
         private final Closeable closeable;
 
         public VaultInstance(String host, int port, String clientToken, Closeable closeable) {
-            this("https://" + host + ":" + port, clientToken, closeable);
+            this("http://" + host + ":" + port, clientToken, closeable);
         }
 
         public VaultInstance(String url, String clientToken, Closeable closeable) {