diff --git a/system-tools.yaml b/system-tools.yaml
index 347ef70..d50e378 100644
--- a/system-tools.yaml
+++ b/system-tools.yaml
@@ -38,10 +38,10 @@ data:
     rpms:
       calc:
         rationale: command-line calculator.
-        ref: f26
+        ref: master
       dateutils:
         rationale: command-line date and time math.
-        ref: f26
+        ref: master
       gcal:
         rationale: better command-line calendar utility.
-        ref: f26
+        ref: master