diff --git a/src/main/java/hudson/plugins/gradle/injection/InjectionConfig.java b/src/main/java/hudson/plugins/gradle/injection/InjectionConfig.java
index 40f5bc71..65a2f8c1 100644
--- a/src/main/java/hudson/plugins/gradle/injection/InjectionConfig.java
+++ b/src/main/java/hudson/plugins/gradle/injection/InjectionConfig.java
@@ -648,6 +648,8 @@ protected Object readResolve() throws IOException {
 
             setAccessKeyCredentialId(stringCredentials.getId());
             accessKey = null;
+
+            save();
         }
         if (gradlePluginRepositoryUsername != null && gradlePluginRepositoryPassword != null && gradlePluginRepositoryCredentialId == null) {
             StandardUsernamePasswordCredentials standardUsernameCredentials = new UsernamePasswordCredentialsImpl(
@@ -664,7 +666,10 @@ protected Object readResolve() throws IOException {
             setGradlePluginRepositoryCredentialId(standardUsernameCredentials.getId());
             gradlePluginRepositoryUsername = null;
             gradlePluginRepositoryPassword = null;
+
+            save();
         }
+
         return this;
     }