diff --git a/contracts/eosio.bios/src/eosio.bios.cpp b/contracts/eosio.bios/src/eosio.bios.cpp
index cd8cb437..b8934003 100644
--- a/contracts/eosio.bios/src/eosio.bios.cpp
+++ b/contracts/eosio.bios/src/eosio.bios.cpp
@@ -78,7 +78,8 @@ void bios::setfinalizer( const finalizer_policy& finalizer_policy ) {
       fin_policy.finalizers.emplace_back(eosio::finalizer_authority{f.description, f.weight, std::move(pk_vector)});
    }
 
-   check(finalizer_policy.threshold > weight_sum / 2, "finalizer policy threshold must be greater than half of the sum of the weights");
+   check( weight_sum >= finalizer_policy.threshold && finalizer_policy.threshold > weight_sum / 2,
+          "Finalizer policy threshold must be greater than half of the sum of the weights, and less than or equal to the sum of the weights");
 
    set_finalizers(std::move(fin_policy));
 }
diff --git a/tests/eosio.bios_inst_fin_tests.cpp b/tests/eosio.bios_inst_fin_tests.cpp
index f8fc10f5..2518f144 100644
--- a/tests/eosio.bios_inst_fin_tests.cpp
+++ b/tests/eosio.bios_inst_fin_tests.cpp
@@ -46,7 +46,7 @@ BOOST_FIXTURE_TEST_CASE( set_1_finalizer, eosio_bios_if_tester ) try {
          ("finalizers", std::vector<mvo>{
             mvo()
                ("description", "set_1_finalizer")
-               ("weight", 1)
+               ("weight", 2)
                ("public_key", "PUB_BLS_jpMTmybJZvf4k6fR7Bgu7wrNjwQLK/IBdjhZHWTjoohgdUMi8VpTGsyYpzP1+ekMzUuZ8LqFcnfO0myTwH9Y2YeabhhowSp7nzJJhgO4XWCpcGCLssOjVWh3/D9wMIISVUwfsQ==")
                ("pop", "SIG_BLS_qxozxdQngA4iDidRNJXwKML7VhawRi6XGMXeBc55MzDaAyixR5D3Ys7d72IiwroUkWDqEVQrPq+u/ukICWD9g+LeE9JNxn8IBMLpotXu728ezyal6g5tMoDf8PQuZSEP6yPSMGo7ajbHVe+ehcgWs+/zpxWH1WgCTgU3Bc5Qy32z6L0ztK3WLuW25OmK3EQLbIP5sPMv07gMWP4aDNLAor6IzQYMvxFaibiWsSqMt4YxB6eONetmdftCn5Om3NcHwW7Ueg==")})));
 
@@ -59,7 +59,7 @@ BOOST_FIXTURE_TEST_CASE( set_1_finalizer, eosio_bios_if_tester ) try {
     BOOST_REQUIRE_EQUAL(pretty_output["instant_finality_extension"]["new_finalizer_policy"]["threshold"], 2);
     BOOST_REQUIRE_EQUAL(pretty_output["instant_finality_extension"]["new_finalizer_policy"]["finalizers"].size(), 1u);
     BOOST_REQUIRE_EQUAL(pretty_output["instant_finality_extension"]["new_finalizer_policy"]["finalizers"][size_t(0)]["description"], "set_1_finalizer");
-    BOOST_REQUIRE_EQUAL(pretty_output["instant_finality_extension"]["new_finalizer_policy"]["finalizers"][size_t(0)]["weight"], 1);
+    BOOST_REQUIRE_EQUAL(pretty_output["instant_finality_extension"]["new_finalizer_policy"]["finalizers"][size_t(0)]["weight"], 2);
     BOOST_REQUIRE_EQUAL(pretty_output["instant_finality_extension"]["new_finalizer_policy"]["finalizers"][size_t(0)]["public_key"], "PUB_BLS_jpMTmybJZvf4k6fR7Bgu7wrNjwQLK/IBdjhZHWTjoohgdUMi8VpTGsyYpzP1+ekMzUuZ8LqFcnfO0myTwH9Y2YeabhhowSp7nzJJhgO4XWCpcGCLssOjVWh3/D9wMIISVUwfsQ==");
 } FC_LOG_AND_RETHROW()
 
@@ -68,16 +68,16 @@ BOOST_FIXTURE_TEST_CASE( set_2_finalizers, eosio_bios_if_tester ) try {
    // public_key and pop are generated by leap-util
    push_action("iftester"_n, "setfinalizer"_n, "iftester"_n, mvo()
       ("finalizer_policy", mvo()
-         ("threshold", 4)
+         ("threshold", 5)
          ("finalizers", std::vector<mvo>{
             mvo()
                ("description", "set_2_finalizer_1")
-               ("weight", 1)
+               ("weight", 3)
                ("public_key", "PUB_BLS_jpMTmybJZvf4k6fR7Bgu7wrNjwQLK/IBdjhZHWTjoohgdUMi8VpTGsyYpzP1+ekMzUuZ8LqFcnfO0myTwH9Y2YeabhhowSp7nzJJhgO4XWCpcGCLssOjVWh3/D9wMIISVUwfsQ==")
                ("pop", "SIG_BLS_qxozxdQngA4iDidRNJXwKML7VhawRi6XGMXeBc55MzDaAyixR5D3Ys7d72IiwroUkWDqEVQrPq+u/ukICWD9g+LeE9JNxn8IBMLpotXu728ezyal6g5tMoDf8PQuZSEP6yPSMGo7ajbHVe+ehcgWs+/zpxWH1WgCTgU3Bc5Qy32z6L0ztK3WLuW25OmK3EQLbIP5sPMv07gMWP4aDNLAor6IzQYMvxFaibiWsSqMt4YxB6eONetmdftCn5Om3NcHwW7Ueg=="),
             mvo()
                ("description", "set_2_finalizer_2")
-               ("weight", 2)
+               ("weight", 5)
                ("public_key", "PUB_BLS_UGcXVpLNrhdODrbI9Geaswu8wFnL+WMnphfTaCgehRxol5wI1qiU5zq6qHp9+CkFnmm2XWCcM/YEtqZYL6uTM1TXTpTm3LODI0s/ULO4iKSNYclsmDdh5cFSMmKKnloHudh3Zw==")
                ("pop", "SIG_BLS_bFLCSmXqVrFqWo2mqxCeuLO5iAevMu/8qxpS7HkXSMmXuVLEytt+shDHn8FpcrUMlMHjxEAHOyRVi0ckvXYrCpHMx6floRvljJ1vV2FphGqgm24DxuB1BE3E21Okc0QS3GH6UCISfVBXuqoK+EfmoSGz3ssi0kzevE8MQitzGgK9EW3zTlZtvdRryI1OTUoUXkjTo1Q2VQIbqJZ55W7SNHUcIBZO5Ih4AXc7usjWUBXv1BK0NNcort4EAfOXnkIN47iRLQ==")
             })));
@@ -88,10 +88,10 @@ BOOST_FIXTURE_TEST_CASE( set_2_finalizers, eosio_bios_if_tester ) try {
 
     BOOST_REQUIRE(pretty_output.get_object().contains("instant_finality_extension"));
     BOOST_REQUIRE_EQUAL(pretty_output["instant_finality_extension"]["new_finalizer_policy"]["generation"], 1);
-    BOOST_REQUIRE_EQUAL(pretty_output["instant_finality_extension"]["new_finalizer_policy"]["threshold"], 4);
+    BOOST_REQUIRE_EQUAL(pretty_output["instant_finality_extension"]["new_finalizer_policy"]["threshold"], 5);
     BOOST_REQUIRE_EQUAL(pretty_output["instant_finality_extension"]["new_finalizer_policy"]["finalizers"].size(), 2u);
     BOOST_REQUIRE_EQUAL(pretty_output["instant_finality_extension"]["new_finalizer_policy"]["finalizers"][size_t(1)]["description"], "set_2_finalizer_2");
-    BOOST_REQUIRE_EQUAL(pretty_output["instant_finality_extension"]["new_finalizer_policy"]["finalizers"][size_t(1)]["weight"], 2);
+    BOOST_REQUIRE_EQUAL(pretty_output["instant_finality_extension"]["new_finalizer_policy"]["finalizers"][size_t(1)]["weight"], 5);
     BOOST_REQUIRE_EQUAL(pretty_output["instant_finality_extension"]["new_finalizer_policy"]["finalizers"][size_t(1)]["public_key"], "PUB_BLS_UGcXVpLNrhdODrbI9Geaswu8wFnL+WMnphfTaCgehRxol5wI1qiU5zq6qHp9+CkFnmm2XWCcM/YEtqZYL6uTM1TXTpTm3LODI0s/ULO4iKSNYclsmDdh5cFSMmKKnloHudh3Zw==");
 } FC_LOG_AND_RETHROW()
 
@@ -108,7 +108,7 @@ BOOST_FIXTURE_TEST_CASE( public_key_not_started_with_PUB_BLS, eosio_bios_if_test
       ("finalizer_policy", mvo()("threshold", 2)
          ("finalizers", std::vector<mvo>{mvo()
             ("description", "set_1_finalizer")
-            ("weight", 1)
+            ("weight", 2)
             // PUB_BLS to UB_BLS
             ("public_key", "UB_BLS_jpMTmybJZvf4k6fR7Bgu7wrNjwQLK/IBdjhZHWTjoohgdUMi8VpTGsyYpzP1+ekMzUuZ8LqFcnfO0myTwH9Y2YeabhhowSp7nzJJhgO4XWCpcGCLssOjVWh3/D9wMIISVUwfsQ==")
             ("pop", "SIG_BLS_qxozxdQngA4iDidRNJXwKML7VhawRi6XGMXeBc55MzDaAyixR5D3Ys7d72IiwroUkWDqEVQrPq+u/ukICWD9g+LeE9JNxn8IBMLpotXu728ezyal6g5tMoDf8PQuZSEP6yPSMGo7ajbHVe+ehcgWs+/zpxWH1WgCTgU3Bc5Qy32z6L0ztK3WLuW25OmK3EQLbIP5sPMv07gMWP4aDNLAor6IzQYMvxFaibiWsSqMt4YxB6eONetmdftCn5Om3NcHwW7Ueg==")}))), eosio_assert_message_exception);
@@ -120,7 +120,7 @@ BOOST_FIXTURE_TEST_CASE( signature_not_started_with_SIG_BLS, eosio_bios_if_teste
       ("finalizer_policy", mvo()("threshold", 2)
          ("finalizers", std::vector<mvo>{mvo()
             ("description", "set_1_finalizer")
-            ("weight", 1)
+            ("weight", 2)
             ("public_key", "PUB_BLS_jpMTmybJZvf4k6fR7Bgu7wrNjwQLK/IBdjhZHWTjoohgdUMi8VpTGsyYpzP1+ekMzUuZ8LqFcnfO0myTwH9Y2YeabhhowSp7nzJJhgO4XWCpcGCLssOjVWh3/D9wMIISVUwfsQ==")
             // SIG_BLS changed to SIG_BL
             ("pop", "SIG_BL_qxozxdQngA4iDidRNJXwKML7VhawRi6XGMXeBc55MzDaAyixR5D3Ys7d72IiwroUkWDqEVQrPq+u/ukICWD9g+LeE9JNxn8IBMLpotXu728ezyal6g5tMoDf8PQuZSEP6yPSMGo7ajbHVe+ehcgWs+/zpxWH1WgCTgU3Bc5Qy32z6L0ztK3WLuW25OmK3EQLbIP5sPMv07gMWP4aDNLAor6IzQYMvxFaibiWsSqMt4YxB6eONetmdftCn5Om3NcHwW7Ueg==")}))), eosio_assert_message_exception);
@@ -132,7 +132,7 @@ BOOST_FIXTURE_TEST_CASE( pop_failed, eosio_bios_if_tester ) try {
       ("finalizer_policy", mvo()("threshold", 2)
          ("finalizers", std::vector<mvo>{mvo()
             ("description", "set_1_finalizer")
-            ("weight", 1)
+            ("weight", 2)
             ("public_key", "PUB_BLS_jpMTmybJZvf4k6fR7Bgu7wrNjwQLK/IBdjhZHWTjoohgdUMi8VpTGsyYpzP1+ekMzUuZ8LqFcnfO0myTwH9Y2YeabhhowSp7nzJJhgO4XWCpcGCLssOjVWh3/D9wMIISVUwfsQ==")
             // SIG_BLS_q changed to SIG_BLS_j
             ("pop", "SIG_BLS_jxozxdQngA4iDidRNJXwKML7VhawRi6XGMXeBc55MzDaAyixR5D3Ys7d72IiwroUkWDqEVQrPq+u/ukICWD9g+LeE9JNxn8IBMLpotXu728ezyal6g5tMoDf8PQuZSEP6yPSMGo7ajbHVe+ehcgWs+/zpxWH1WgCTgU3Bc5Qy32z6L0ztK3WLuW25OmK3EQLbIP5sPMv07gMWP4aDNLAor6IzQYMvxFaibiWsSqMt4YxB6eONetmdftCn5Om3NcHwW7Ueg==")}))), eosio_assert_message_exception);
@@ -201,7 +201,7 @@ BOOST_FIXTURE_TEST_CASE( long_description, eosio_bios_if_tester ) try {
       ("finalizer_policy", mvo()("threshold", 2)
          ("finalizers", std::vector<mvo>{mvo()
             ("description", std::string(257, 'a'))
-            ("weight", 1)
+            ("weight", 2)
             ("public_key", "PUB_BLS_jpMTmybJZvf4k6fR7Bgu7wrNjwQLK/IBdjhZHWTjoohgdUMi8VpTGsyYpzP1+ekMzUuZ8LqFcnfO0myTwH9Y2YeabhhowSp7nzJJhgO4XWCpcGCLssOjVWh3/D9wMIISVUwfsQ==")
             ("pop", "SIG_BLS_qxozxdQngA4iDidRNJXwKML7VhawRi6XGMXeBc55MzDaAyixR5D3Ys7d72IiwroUkWDqEVQrPq+u/ukICWD9g+LeE9JNxn8IBMLpotXu728ezyal6g5tMoDf8PQuZSEP6yPSMGo7ajbHVe+ehcgWs+/zpxWH1WgCTgU3Bc5Qy32z6L0ztK3WLuW25OmK3EQLbIP5sPMv07gMWP4aDNLAor6IzQYMvxFaibiWsSqMt4YxB6eONetmdftCn5Om3NcHwW7Ueg==")}))), eosio_assert_message_exception);
 } FC_LOG_AND_RETHROW()
@@ -212,7 +212,7 @@ BOOST_FIXTURE_TEST_CASE( description_size_equal_to_max, eosio_bios_if_tester ) t
       ("finalizer_policy", mvo()("threshold", 2)
          ("finalizers", std::vector<mvo>{mvo()
             ("description", std::string(256, 'a'))
-            ("weight", 1)
+            ("weight", 2)
             ("public_key", "PUB_BLS_jpMTmybJZvf4k6fR7Bgu7wrNjwQLK/IBdjhZHWTjoohgdUMi8VpTGsyYpzP1+ekMzUuZ8LqFcnfO0myTwH9Y2YeabhhowSp7nzJJhgO4XWCpcGCLssOjVWh3/D9wMIISVUwfsQ==")
             ("pop", "SIG_BLS_qxozxdQngA4iDidRNJXwKML7VhawRi6XGMXeBc55MzDaAyixR5D3Ys7d72IiwroUkWDqEVQrPq+u/ukICWD9g+LeE9JNxn8IBMLpotXu728ezyal6g5tMoDf8PQuZSEP6yPSMGo7ajbHVe+ehcgWs+/zpxWH1WgCTgU3Bc5Qy32z6L0ztK3WLuW25OmK3EQLbIP5sPMv07gMWP4aDNLAor6IzQYMvxFaibiWsSqMt4YxB6eONetmdftCn5Om3NcHwW7Ueg==")}))));
 } FC_LOG_AND_RETHROW()