diff --git a/sdk/identity/azure-identity/src/main/java/com/azure/identity/implementation/IdentityClient.java b/sdk/identity/azure-identity/src/main/java/com/azure/identity/implementation/IdentityClient.java
index c570a08dfa98..c8a86a8487ab 100644
--- a/sdk/identity/azure-identity/src/main/java/com/azure/identity/implementation/IdentityClient.java
+++ b/sdk/identity/azure-identity/src/main/java/com/azure/identity/implementation/IdentityClient.java
@@ -1040,7 +1040,7 @@ public Mono<AccessToken> authenticateToManagedIdentityEndpoint(String identityEn
             payload.append("?resource=");
             payload.append(urlEncode(resource));
             payload.append("&api-version=");
-            payload.append(MSI_ENDPOINT_VERSION);
+            payload.append(URLEncoder.encode(endpointVersion, StandardCharsets.UTF_8.name()));
             if (clientId != null) {
                 if (endpointVersion.equals(IDENTITY_ENDPOINT_VERSION)) {
                     payload.append("&client_id=");