diff --git a/app/models/project.rb b/app/models/project.rb
index 09a5613fc..8bf44275b 100644
--- a/app/models/project.rb
+++ b/app/models/project.rb
@@ -13,7 +13,6 @@
 #  marked_fire_at       :datetime
 #  memberships_count    :integer          default(0), not null
 #  nominated_fire_at    :datetime
-#  project_categories   :string           default([]), is an Array
 #  project_type         :string
 #  readme_url           :text
 #  repo_url             :text
diff --git a/db/migrate/20260615145040_drop_project_categories_from_projects.rb b/db/migrate/20260615145040_drop_project_categories_from_projects.rb
new file mode 100644
index 000000000..76f49a655
--- /dev/null
+++ b/db/migrate/20260615145040_drop_project_categories_from_projects.rb
@@ -0,0 +1,5 @@
+class DropProjectCategoriesFromProjects < ActiveRecord::Migration[8.1]
+  def change
+    safety_assured { remove_column :projects, :project_categories, :string, array: true, default: [] }
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index b3a03bfac..600c9afe9 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[8.1].define(version: 2026_06_11_210539) do
+ActiveRecord::Schema[8.1].define(version: 2026_06_15_145040) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "pg_catalog.plpgsql"
   enable_extension "vector"
@@ -751,7 +751,6 @@
     t.integer "memberships_count", default: 0, null: false
     t.datetime "nominated_fire_at"
     t.bigint "nominated_fire_by_id"
-    t.string "project_categories", default: [], array: true
     t.string "project_type"
     t.text "readme_url"
     t.text "repo_url"
diff --git a/test/fixtures/projects.yml b/test/fixtures/projects.yml
index 86427edea..5a466a101 100644
--- a/test/fixtures/projects.yml
+++ b/test/fixtures/projects.yml
@@ -15,7 +15,6 @@
 #  marked_fire_at       :datetime
 #  memberships_count    :integer          default(0), not null
 #  nominated_fire_at    :datetime
-#  project_categories   :string           default([]), is an Array
 #  project_type         :string
 #  readme_url           :text
 #  repo_url             :text
diff --git a/test/models/project_test.rb b/test/models/project_test.rb
index bda1521f2..9aadc4c64 100644
--- a/test/models/project_test.rb
+++ b/test/models/project_test.rb
@@ -13,7 +13,6 @@
 #  marked_fire_at       :datetime
 #  memberships_count    :integer          default(0), not null
 #  nominated_fire_at    :datetime
-#  project_categories   :string           default([]), is an Array
 #  project_type         :string
 #  readme_url           :text
 #  repo_url             :text