diff --git a/lib/src/c14n_canonicalization.dart b/lib/src/c14n_canonicalization.dart
index 1e98b0e..3cc3774 100644
--- a/lib/src/c14n_canonicalization.dart
+++ b/lib/src/c14n_canonicalization.dart
@@ -148,7 +148,8 @@ class C14nCanonicalization implements CanonicalizationAlgorithm<String> {
 
     //render namespaces
     for (final ns in nsListToRender) {
-      res.add(' xmlns${ns.prefix.isNotEmpty ? ':${ns.prefix}' : ''}="${ns.namespaceURI}"');
+      res.add(
+          ' xmlns${ns.prefix.isNotEmpty ? ':${ns.prefix}' : ''}="${ns.namespaceURI}"');
     }
 
     return RenderNsResult(res.join(''), newDefaultNs);
diff --git a/lib/src/signed_xml.dart b/lib/src/signed_xml.dart
index 1e49eee..8d13fc9 100644
--- a/lib/src/signed_xml.dart
+++ b/lib/src/signed_xml.dart
@@ -87,8 +87,7 @@ List<XmlNamespace> _collectAncestorNamespaces(XmlNode node,
   for (var attr in parent.attributes) {
     final name = attr.name.qualified;
     if (name.startsWith(regexp)) {
-      nsArray.add(
-          XmlNamespace(name.replaceFirst(regexp, ''), attr.value));
+      nsArray.add(XmlNamespace(name.replaceFirst(regexp, ''), attr.value));
     }
   }
 
@@ -699,8 +698,7 @@ class SignedXml {
     if (currentPrefix.isNotEmpty) currentPrefix += ':';
 
     if (keyInfoProvider != null) {
-      final keyInfoAttrs = StringBuffer(),
-        attrs = keyInfoProvider!.attrs;
+      final keyInfoAttrs = StringBuffer(), attrs = keyInfoProvider!.attrs;
       if (attrs != null) {
         for (var entry in attrs.entries) {
           keyInfoAttrs.write(' ${entry.key}="${entry.value}"');
@@ -903,12 +901,14 @@ class FileKeyInfo implements KeyInfoProvider {
   @override
   String getKeyInfo(Uint8List? signingKey, String? prefix) {
     var currentPrefix = prefix ?? '';
-    currentPrefix = currentPrefix.isNotEmpty ? '$currentPrefix:' : currentPrefix;
+    currentPrefix =
+        currentPrefix.isNotEmpty ? '$currentPrefix:' : currentPrefix;
     final signingCert = StringBuffer();
     if (signingKey != null) {
       final certArray = [signingKey];
       for (var cert in certArray) {
-        signingCert.write("<${currentPrefix}X509Certificate>${base64Encode(cert)}</${currentPrefix}X509Certificate>");
+        signingCert.write(
+            "<${currentPrefix}X509Certificate>${base64Encode(cert)}</${currentPrefix}X509Certificate>");
       }
     }
     return '<${currentPrefix}X509Data>${signingCert.toString()}</${currentPrefix}X509Data>';