diff --git a/src/oracles/CoinbaseOracle.sol b/src/oracles/CoinbaseOracle.sol
index c361ac2..3fc88e1 100644
--- a/src/oracles/CoinbaseOracle.sol
+++ b/src/oracles/CoinbaseOracle.sol
@@ -6,7 +6,7 @@ import {IAggregatorV3Source} from "../interfaces/chainlink/IAggregatorV3Source.s
 contract CoinbaseOracle is IAggregatorV3Source {
     address immutable reporter;
 
-    uint8 public constant decimals = 6;
+    uint8 public immutable decimals;
 
     string public symbol;
 
@@ -15,8 +15,9 @@ contract CoinbaseOracle is IAggregatorV3Source {
     mapping(uint80 => int256) public roundAnswers;
     mapping(uint80 => uint256) public roundTimestamps;
 
-    constructor(string memory _symbol, address _reporter) {
+    constructor(string memory _symbol, uint8 _decimals, address _reporter) {
         symbol = _symbol;
+        decimals = _decimals;
         reporter = _reporter;
     }
 
diff --git a/test/unit/CoinbaseOracle.sol b/test/unit/CoinbaseOracle.sol
index 6fcfcbb..8ad98de 100644
--- a/test/unit/CoinbaseOracle.sol
+++ b/test/unit/CoinbaseOracle.sol
@@ -19,7 +19,7 @@ contract CoinbaseSourceAdapterTest is CommonTest {
         (address _reporter, uint256 _reporterPk) = makeAddrAndKey("reporter");
         reporter = _reporter;
         reporterPk = _reporterPk;
-        coinbaseOracle = new CoinbaseOracle("ETH", reporter);
+        coinbaseOracle = new CoinbaseOracle("ETH", 6, reporter);
     }
 
     function testPushPrice() public {
diff --git a/test/unit/CoinbaseOracleSourceAdapter.sol b/test/unit/CoinbaseOracleSourceAdapter.sol
index 89fcdc2..57f3efc 100644
--- a/test/unit/CoinbaseOracleSourceAdapter.sol
+++ b/test/unit/CoinbaseOracleSourceAdapter.sol
@@ -73,7 +73,7 @@ contract CoinbaseSourceAdapterTest is CommonTest {
         (address _reporter, uint256 _reporterPk) = makeAddrAndKey("reporter");
         reporter = _reporter;
         reporterPk = _reporterPk;
-        coinbase = new CoinbaseOracle(ticker, reporter);
+        coinbase = new CoinbaseOracle(ticker, 6, reporter);
         sourceAdapter = new TestedSourceAdapter(coinbase);
 
         // Push some prices to the oracle
@@ -183,7 +183,7 @@ contract CoinbaseSourceAdapterTest is CommonTest {
     }
 
     function testNonHistoricalData() public {
-        coinbase = new CoinbaseOracle(ticker, reporter);
+        coinbase = new CoinbaseOracle(ticker, 6, reporter);
         sourceAdapter = new TestedSourceAdapter(coinbase);
 
         // Push only one price to the oracle