diff --git a/Project.toml b/Project.toml
index adff298..f3b71b0 100644
--- a/Project.toml
+++ b/Project.toml
@@ -7,8 +7,9 @@ version = "1.10.0"
 Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 
 [extras]
+Documenter = "e30172f5-a6a5-5a46-863b-614d45cd2de4"
 OrderedCollections = "bac558e1-5e72-5ebc-8fee-abe8a469f55d"
 Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [targets]
-test = ["OrderedCollections", "Test"]
+test = ["Documenter", "OrderedCollections", "Test"]
diff --git a/test/runtests.jl b/test/runtests.jl
index 0591ec4..8fe0872 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -13,10 +13,18 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
+using Documenter: DocMeta.setdocmeta!, doctest
 using OrderedCollections: LittleDict, OrderedDict
 using Random: Random
 using Test, UUID4
 
+setdocmeta!(UUID4, :DocTestSetup, quote
+#! format: noindent
+using OrderedCollections: OrderedDict
+using UUID4
+end)
+doctest(UUID4, fix = true, manual = false)
+
 u4 = uuid4()
 @test 4 == uuid_version(u4)
 @test 4 == uuid_version(u4 |> string)