diff --git a/PackageInfo.g b/PackageInfo.g
index fc2385239..576909014 100644
--- a/PackageInfo.g
+++ b/PackageInfo.g
@@ -576,6 +576,7 @@ Dependencies := rec(
                              ["GRAPE", ">=4.8.1"],
                              ["NautyTracesInterface", ">=0.2"],
                              ["AutoDoc", ">=2020.08.11"]],
+  TestPackages := [["GAPDoc", ">=1.6.3"]],
   ExternalConditions := [],
 ),
 
diff --git a/tst/teststandard.g b/tst/teststandard.g
index 46acdf807..35d9780b9 100644
--- a/tst/teststandard.g
+++ b/tst/teststandard.g
@@ -8,6 +8,9 @@
 #############################################################################
 ##
 LoadPackage("digraphs", false);;
+# DigraphsTestManualExamples extracts the examples from the manual,
+# which needs GAPDoc; it is only a suggested package of Digraphs.
+LoadPackage("GAPDoc", false);;
 if SizeBlist([DigraphsTestInstall(),
               DigraphsTestStandard(rec(earlyStop := false)),
               DIGRAPHS_RunTest(DigraphsTestManualExamples)]) = 3 then