diff --git a/src/qz/ui/component/CertificateTable.java b/src/qz/ui/component/CertificateTable.java
index 9e10506b..4c2b6236 100644
--- a/src/qz/ui/component/CertificateTable.java
+++ b/src/qz/ui/component/CertificateTable.java
@@ -17,8 +17,8 @@
  * Displays Certificate information in a JTable
  */
 public class CertificateTable extends DisplayTable implements Themeable {
-    private static Certificate cert;
-    private static final TimeZone utcTimeZone = TimeZone.getTimeZone("UTC");
+    private Certificate cert;
+    private final TimeZone utcTimeZone = TimeZone.getTimeZone("UTC");
     private Instant warn;
     private Instant now;
     private boolean useLocalTimezone = false;