diff --git a/src/beast/extras/beast/unit_test/suite.hpp b/src/beast/extras/beast/unit_test/suite.hpp
index 90183e95b..c4e0cf26c 100644
--- a/src/beast/extras/beast/unit_test/suite.hpp
+++ b/src/beast/extras/beast/unit_test/suite.hpp
@@ -670,6 +670,11 @@ run(runner& r)
     @endcode
 
     The macro invocation must appear in the same namespace as the test class.
+
+    Unit test priorities were introduced so parallel unit_test::suites would
+    execute faster. Suites with longer running times have higher priorities
+    than unit tests with shorter running times.  Suites with no priorities
+    are assumed to run most quickly, so they run last.
 */
 
 #if BEAST_NO_UNIT_TEST_INLINE
diff --git a/src/test/app/AccountDelete_test.cpp b/src/test/app/AccountDelete_test.cpp
index 75d475c2c..db2ac5799 100644
--- a/src/test/app/AccountDelete_test.cpp
+++ b/src/test/app/AccountDelete_test.cpp
@@ -924,7 +924,7 @@ public:
     }
 };
 
-BEAST_DEFINE_TESTSUITE(AccountDelete, app, ripple);
+BEAST_DEFINE_TESTSUITE_PRIO(AccountDelete, app, ripple, 2);
 
 }  // namespace test
 }  // namespace ripple
diff --git a/src/test/app/LedgerReplay_test.cpp b/src/test/app/LedgerReplay_test.cpp
index 3ba3db298..7e1ecf902 100644
--- a/src/test/app/LedgerReplay_test.cpp
+++ b/src/test/app/LedgerReplay_test.cpp
@@ -1572,7 +1572,7 @@ struct LedgerReplayerLong_test : public beast::unit_test::suite
 };
 
 BEAST_DEFINE_TESTSUITE(LedgerReplay, app, ripple);
-BEAST_DEFINE_TESTSUITE(LedgerReplayer, app, ripple);
+BEAST_DEFINE_TESTSUITE_PRIO(LedgerReplayer, app, ripple, 1);
 BEAST_DEFINE_TESTSUITE(LedgerReplayerTimeout, app, ripple);
 BEAST_DEFINE_TESTSUITE_MANUAL(LedgerReplayerLong, app, ripple);
 
diff --git a/src/test/app/TheoreticalQuality_test.cpp b/src/test/app/TheoreticalQuality_test.cpp
index 70eaa2cd9..d345b8cc1 100644
--- a/src/test/app/TheoreticalQuality_test.cpp
+++ b/src/test/app/TheoreticalQuality_test.cpp
@@ -549,7 +549,7 @@ public:
     }
 };
 
-BEAST_DEFINE_TESTSUITE(TheoreticalQuality, app, ripple);
+BEAST_DEFINE_TESTSUITE_PRIO(TheoreticalQuality, app, ripple, 3);
 
 }  // namespace test
 }  // namespace ripple
diff --git a/src/test/app/TrustAndBalance_test.cpp b/src/test/app/TrustAndBalance_test.cpp
index 72ab5eb43..e67f3ba32 100644
--- a/src/test/app/TrustAndBalance_test.cpp
+++ b/src/test/app/TrustAndBalance_test.cpp
@@ -505,6 +505,6 @@ public:
     }
 };
 
-BEAST_DEFINE_TESTSUITE_PRIO(TrustAndBalance, app, ripple, 1);
+BEAST_DEFINE_TESTSUITE(TrustAndBalance, app, ripple);
 
 }  // namespace ripple
diff --git a/src/test/app/ValidatorSite_test.cpp b/src/test/app/ValidatorSite_test.cpp
index 56626f925..cfae40fd8 100644
--- a/src/test/app/ValidatorSite_test.cpp
+++ b/src/test/app/ValidatorSite_test.cpp
@@ -659,7 +659,7 @@ public:
     }
 };
 
-BEAST_DEFINE_TESTSUITE(ValidatorSite, app, ripple);
+BEAST_DEFINE_TESTSUITE_PRIO(ValidatorSite, app, ripple, 2);
 
 }  // namespace test
 }  // namespace ripple
diff --git a/src/test/consensus/NegativeUNL_test.cpp b/src/test/consensus/NegativeUNL_test.cpp
index 59b0c5682..39028afff 100644
--- a/src/test/consensus/NegativeUNL_test.cpp
+++ b/src/test/consensus/NegativeUNL_test.cpp
@@ -1997,14 +1997,14 @@ BEAST_DEFINE_TESTSUITE(NegativeUNLNoAmendment, ledger, ripple);
 BEAST_DEFINE_TESTSUITE(NegativeUNLVoteInternal, consensus, ripple);
 BEAST_DEFINE_TESTSUITE_MANUAL(NegativeUNLVoteScoreTable, consensus, ripple);
 BEAST_DEFINE_TESTSUITE_PRIO(NegativeUNLVoteGoodScore, consensus, ripple, 1);
-BEAST_DEFINE_TESTSUITE_PRIO(NegativeUNLVoteOffline, consensus, ripple, 1);
-BEAST_DEFINE_TESTSUITE_PRIO(NegativeUNLVoteMaxListed, consensus, ripple, 1);
+BEAST_DEFINE_TESTSUITE(NegativeUNLVoteOffline, consensus, ripple);
+BEAST_DEFINE_TESTSUITE(NegativeUNLVoteMaxListed, consensus, ripple);
 BEAST_DEFINE_TESTSUITE_PRIO(
     NegativeUNLVoteRetiredValidator,
     consensus,
     ripple,
     1);
-BEAST_DEFINE_TESTSUITE_PRIO(NegativeUNLVoteNewValidator, consensus, ripple, 1);
+BEAST_DEFINE_TESTSUITE(NegativeUNLVoteNewValidator, consensus, ripple);
 BEAST_DEFINE_TESTSUITE(NegativeUNLVoteFilterValidations, consensus, ripple);
 BEAST_DEFINE_TESTSUITE(NegativeUNLgRPC, ledger, ripple);
 
diff --git a/src/test/rpc/AccountSet_test.cpp b/src/test/rpc/AccountSet_test.cpp
index 23716b665..a125f318c 100644
--- a/src/test/rpc/AccountSet_test.cpp
+++ b/src/test/rpc/AccountSet_test.cpp
@@ -555,6 +555,6 @@ public:
     }
 };
 
-BEAST_DEFINE_TESTSUITE(AccountSet, app, ripple);
+BEAST_DEFINE_TESTSUITE_PRIO(AccountSet, app, ripple, 1);
 
 }  // namespace ripple
diff --git a/src/test/rpc/ReportingETL_test.cpp b/src/test/rpc/ReportingETL_test.cpp
index cbb484ea4..a1f2c4f64 100644
--- a/src/test/rpc/ReportingETL_test.cpp
+++ b/src/test/rpc/ReportingETL_test.cpp
@@ -1031,7 +1031,7 @@ public:
     }
 };
 
-BEAST_DEFINE_TESTSUITE(ReportingETL, app, ripple);
+BEAST_DEFINE_TESTSUITE_PRIO(ReportingETL, app, ripple, 2);
 
 }  // namespace test
 }  // namespace ripple
diff --git a/src/test/rpc/ShardArchiveHandler_test.cpp b/src/test/rpc/ShardArchiveHandler_test.cpp
index 70b60b3b6..296699b3c 100644
--- a/src/test/rpc/ShardArchiveHandler_test.cpp
+++ b/src/test/rpc/ShardArchiveHandler_test.cpp
@@ -696,7 +696,7 @@ public:
     }
 };
 
-BEAST_DEFINE_TESTSUITE(ShardArchiveHandler, app, ripple);
+BEAST_DEFINE_TESTSUITE_PRIO(ShardArchiveHandler, app, ripple, 3);
 
 }  // namespace test
 }  // namespace ripple