diff --git a/.cirrus.yml b/.cirrus.yml
index 24c80075a7..25318d8814 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -149,7 +149,7 @@ env:
 
   # Increase this to flush the ccache cache. Mainly useful until there's
   # a solution for the mtime pruning above.
-  ZEEK_CCACHE_EPOCH: 2
+  ZEEK_CCACHE_EPOCH: 3
 
 # Linux EOL timelines: https://linuxlifecycle.com/
 # Fedora (~13 months): https://fedoraproject.org/wiki/Fedora_Release_Life_Cycle