diff --git a/_data/rules.yml b/_data/rules.yml
index dcc8c5e..703fcac 100644
--- a/_data/rules.yml
+++ b/_data/rules.yml
@@ -388,11 +388,11 @@ groups:
                 query: 'probe_http_status_code <= 199 OR probe_http_status_code >= 400'
                 severity: critical
               - name: Blackbox SSL certificate will expire soon
-                description: SSL certificate expires in 20 days
+                description: SSL certificate expires in less than 20 days
                 query: '86400 * 3 <= last_over_time(probe_ssl_earliest_cert_expiry[10m]) - time() < 86400 * 20'
                 severity: warning
               - name: Blackbox SSL certificate will expire soon
-                description: SSL certificate expires in 3 days
+                description: SSL certificate expires in less than 3 days
                 query: '0 <= last_over_time(probe_ssl_earliest_cert_expiry[10m]) - time() < 86400 * 3'
                 severity: critical
               - name: Blackbox SSL certificate expired