diff --git a/lib/zgacertsutil.js b/lib/zgacertsutil.js
index e392fe4..f51dd82 100644
--- a/lib/zgacertsutil.js
+++ b/lib/zgacertsutil.js
@@ -505,8 +505,11 @@ z.CertsChain = class{
 
 			for(var i=0; i<_this.crls.length; i++){
 				z.log("Query crl for [" + _this.crls[i] + "]");
+				const url = _this.crls[i];
+				// A query of the Certificate Revocation List (CRL) via LDAP is unnecessary during the signing process.
+				if(url.slice(0,4)==='ldap') continue;
 				/** @type {Uint8Array} */
-				var crl = await z.urlFetch(_this.crls[i]);
+				var crl = await z.urlFetch(url);
 				if(crl){
 					crls.push(crl);
 				}
diff --git a/package-lock.json b/package-lock.json
index 8409a51..317484d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "zgapdfsigner",
-  "version": "2.7.2",
+  "version": "2.7.3",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "zgapdfsigner",
-      "version": "2.7.2",
+      "version": "2.7.3",
       "license": "MIT",
       "dependencies": {
         "follow-redirects": "1.15.6",