diff --git a/httpclient5/src/main/java/org/apache/hc/client5/http/impl/auth/HttpAuthenticator.java b/httpclient5/src/main/java/org/apache/hc/client5/http/impl/auth/HttpAuthenticator.java
index 98d2d438e..d2c7807f4 100644
--- a/httpclient5/src/main/java/org/apache/hc/client5/http/impl/auth/HttpAuthenticator.java
+++ b/httpclient5/src/main/java/org/apache/hc/client5/http/impl/auth/HttpAuthenticator.java
@@ -316,8 +316,7 @@ public class HttpAuthenticator {
 
     private boolean isCachable(final AuthScheme authScheme) {
         final String schemeName = authScheme.getName();
-        return schemeName.equalsIgnoreCase(AuthSchemes.BASIC) ||
-                schemeName.equalsIgnoreCase(AuthSchemes.DIGEST);
+        return schemeName.equalsIgnoreCase(AuthSchemes.BASIC);
     }
 
     private void updateCache(final HttpHost host, final AuthScheme authScheme, final HttpClientContext clientContext) {