diff --git a/.woodpecker.yml b/.woodpecker.yml
index 4ceb197..668df08 100644
--- a/.woodpecker.yml
+++ b/.woodpecker.yml
@@ -18,7 +18,16 @@ pipeline:
       branch: antifascista
       event: push
 matrix:
-  ALPINE_VERSION:
-  - 3.13.7
-  - 3.14.3
-  - 3.15.0
+  include:
+  - ALPINE_VERSION: 3.13.6
+    RUBY_VERSION: 2.7
+    RUBY_PATCH: 5
+  - ALPINE_VERSION: 3.13.7
+    RUBY_VERSION: 2.7
+    RUBY_PATCH: 5
+  - ALPINE_VERSION: 3.14.3
+    RUBY_VERSION: 2.7
+    RUBY_PATCH: 5
+  - ALPINE_VERSION: 3.15.0
+    RUBY_VERSION: 3.0
+    RUBY_PATCH: 3