diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4410548..000942f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -5,7 +5,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - run: curl -L https://github.com/filecoin-station/zinnia/releases/download/v0.18.3/zinnia-linux-x64.tar.gz | tar -xz
+      - run: curl -L https://github.com/filecoin-station/zinnia/releases/download/v0.19.1/zinnia-linux-x64.tar.gz | tar -xz
       - uses: actions/setup-node@v4
       - run: npx standard
       - run: ./zinnia run test.js
diff --git a/lib/spark.js b/lib/spark.js
index 009fdd8..f731832 100644
--- a/lib/spark.js
+++ b/lib/spark.js
@@ -165,19 +165,12 @@ export default class Spark {
 
   async submitMeasurement (task, stats) {
     console.log('Submitting measurement...')
-    // Workaround until there is a new zinnia binary with the following fix:
-    // https://github.com/filecoin-station/zinnia/pull/538
-    let participantAddress = Zinnia.walletAddress
-    if (participantAddress === 't1abjxfbp274xpdqcpuaykwkfb43omjotacm2p3za') {
-      participantAddress = '0x000000000000000000000000000000000000dEaD'
-    }
-
     const payload = {
       sparkVersion: SPARK_VERSION,
       zinniaVersion: Zinnia.versions.zinnia,
       ...task,
       ...stats,
-      participantAddress,
+      participantAddress: Zinnia.walletAddress,
       stationId: Zinnia.stationId
     }
     console.log('%o', payload)
diff --git a/test/spark.js b/test/spark.js
index 64f819e..87e1476 100644
--- a/test/spark.js
+++ b/test/spark.js
@@ -131,7 +131,7 @@ test('submitRetrieval', async () => {
           sparkVersion: SPARK_VERSION,
           zinniaVersion: Zinnia.versions.zinnia,
           cid: 'bafytest',
-          participantAddress: '0x000000000000000000000000000000000000dEaD',
+          participantAddress: Zinnia.walletAddress,
           stationId: Zinnia.stationId
         }),
         headers: { 'Content-Type': 'application/json' }