diff --git a/tests/core/gas-strategies/test_time_based_gas_price_strategy.py b/tests/core/gas-strategies/test_time_based_gas_price_strategy.py
index c2f3ba996e..8678485286 100644
--- a/tests/core/gas-strategies/test_time_based_gas_price_strategy.py
+++ b/tests/core/gas-strategies/test_time_based_gas_price_strategy.py
@@ -118,20 +118,20 @@ def _get_block_by_something(method, params):
     (
         # 120 second wait times
         (dict(max_wait_seconds=80, sample_size=5, probability=98), 70),
-        (dict(max_wait_seconds=80, sample_size=5, probability=90), 23),
-        (dict(max_wait_seconds=80, sample_size=5, probability=50), 7),
+        (dict(max_wait_seconds=80, sample_size=5, probability=90), 25),
+        (dict(max_wait_seconds=80, sample_size=5, probability=50), 11),
         # 60 second wait times
         (dict(max_wait_seconds=60, sample_size=5, probability=98), 92),
-        (dict(max_wait_seconds=60, sample_size=5, probability=90), 48),
-        (dict(max_wait_seconds=60, sample_size=5, probability=50), 7),
+        (dict(max_wait_seconds=60, sample_size=5, probability=90), 49),
+        (dict(max_wait_seconds=60, sample_size=5, probability=50), 11),
         # 40 second wait times
         (dict(max_wait_seconds=40, sample_size=5, probability=98), 100),
         (dict(max_wait_seconds=40, sample_size=5, probability=90), 81),
-        (dict(max_wait_seconds=40, sample_size=5, probability=50), 7),
+        (dict(max_wait_seconds=40, sample_size=5, probability=50), 11),
         # 20 second wait times
         (dict(max_wait_seconds=20, sample_size=5, probability=98), 100),
         (dict(max_wait_seconds=20, sample_size=5, probability=90), 100),
-        (dict(max_wait_seconds=20, sample_size=5, probability=50), 34),
+        (dict(max_wait_seconds=20, sample_size=5, probability=50), 36),
     ),
 )
 def test_time_based_gas_price_strategy(strategy_params, expected):
@@ -150,7 +150,7 @@ def test_time_based_gas_price_strategy(strategy_params, expected):
     )
     w3.eth.setGasPriceStrategy(time_based_gas_price_strategy)
     actual = w3.eth.generateGasPrice()
-    assert actual == expected
+    assert int(actual) == expected
 
 
 @pytest.mark.parametrize(
diff --git a/web3/gas_strategies/time_based.py b/web3/gas_strategies/time_based.py
index 61a4c7e14b..6f4df07bb4 100644
--- a/web3/gas_strategies/time_based.py
+++ b/web3/gas_strategies/time_based.py
@@ -62,7 +62,7 @@ def _aggregate_miner_data(raw_data):
     for miner, miner_data in data_by_miner.items():
         _, block_hashes, gas_prices = map(set, zip(*miner_data))
         try:
-            price_percentile = percentile(gas_prices, percentile=15)
+            price_percentile = percentile(gas_prices, percentile=20)
         except InsufficientData:
             price_percentile = min(gas_prices)
         yield MinerData(