diff --git a/.github/workflows/ruby_event_store-protobuf_coverage.yml b/.github/workflows/ruby_event_store-protobuf_coverage.yml
index 61bcdcafb1..40eaf41c5e 100644
--- a/.github/workflows/ruby_event_store-protobuf_coverage.yml
+++ b/.github/workflows/ruby_event_store-protobuf_coverage.yml
@@ -35,7 +35,7 @@ jobs:
       fail-fast: false
       matrix:
         include:
-        - ruby_version: ruby-3.3
+        - ruby_version: ruby-3.2
           bundle_gemfile: Gemfile
     steps:
     - uses: actions/checkout@v4
diff --git a/.github/workflows/ruby_event_store-protobuf_mutate.yml b/.github/workflows/ruby_event_store-protobuf_mutate.yml
index a0acefe8c7..1281c5f082 100644
--- a/.github/workflows/ruby_event_store-protobuf_mutate.yml
+++ b/.github/workflows/ruby_event_store-protobuf_mutate.yml
@@ -33,7 +33,7 @@ jobs:
       fail-fast: false
       matrix:
         include:
-        - ruby_version: ruby-3.3
+        - ruby_version: ruby-3.2
           bundle_gemfile: Gemfile
     steps:
     - uses: actions/checkout@v4
diff --git a/.github/workflows/ruby_event_store-protobuf_test.yml b/.github/workflows/ruby_event_store-protobuf_test.yml
index 5b00beacfc..c51264ffb1 100644
--- a/.github/workflows/ruby_event_store-protobuf_test.yml
+++ b/.github/workflows/ruby_event_store-protobuf_test.yml
@@ -34,9 +34,6 @@ jobs:
       fail-fast: false
       matrix:
         include:
-        - ruby_version: ruby-3.3
-          bundle_gemfile: Gemfile
-          database_url: sqlite3:db.sqlite3
         - ruby_version: ruby-3.2
           bundle_gemfile: Gemfile
           database_url: sqlite3:db.sqlite3
@@ -46,10 +43,10 @@ jobs:
         - ruby_version: ruby-3.0
           bundle_gemfile: Gemfile
           database_url: sqlite3:db.sqlite3
-        - ruby_version: ruby-3.3
+        - ruby_version: ruby-3.2
           bundle_gemfile: Gemfile.rails_6_1
           database_url: sqlite3:db.sqlite3
-        - ruby_version: ruby-3.3
+        - ruby_version: ruby-3.2
           bundle_gemfile: Gemfile.rails_6_0
           database_url: sqlite3:db.sqlite3
     steps:
diff --git a/support/ci/generate b/support/ci/generate
index d85ce9e1c4..a1d7254876 100755
--- a/support/ci/generate
+++ b/support/ci/generate
@@ -181,14 +181,28 @@ class CI
         matrix:
           join(
             generate(
-              ruby_version(MRI_RUBY),
+              ruby_version(MRI_RUBY.drop(1)),
               bundle_gemfile(GEMFILE, GEMFILE_RAILS_6_1, GEMFILE_RAILS_6_0),
               database_url(SQLITE3)
             )
           )
       ),
-      contrib_mutate("ruby_event_store-protobuf"),
-      contrib_coverage("ruby_event_store-protobuf"),
+      contrib_mutate(
+        "ruby_event_store-protobuf",
+        matrix:
+          generate(
+            ruby_version(MRI_RUBY.drop(1).take(1)),
+            bundle_gemfile(GEMFILE)
+          )
+      ),
+      contrib_coverage(
+        "ruby_event_store-protobuf",
+        matrix:
+          generate(
+            ruby_version(MRI_RUBY.drop(1).take(1)),
+            bundle_gemfile(GEMFILE)
+          )
+      ),
       contrib_test(
         "ruby_event_store-rom",
         services: [postgres_11, postgres_15, mysql_5, mysql_8],