diff --git a/services/s3/common/src/aws/sdk/kotlin/services/s3/express/DefaultS3ExpressCredentialsProvider.kt b/services/s3/common/src/aws/sdk/kotlin/services/s3/express/DefaultS3ExpressCredentialsProvider.kt
index da2e3fc1b0d..d8936f28a3b 100644
--- a/services/s3/common/src/aws/sdk/kotlin/services/s3/express/DefaultS3ExpressCredentialsProvider.kt
+++ b/services/s3/common/src/aws/sdk/kotlin/services/s3/express/DefaultS3ExpressCredentialsProvider.kt
@@ -68,7 +68,6 @@ internal class DefaultS3ExpressCredentialsProvider(
     }
 
     override fun close() {
-        runBlocking { coroutineContext.job.join() }
         coroutineContext.cancel(null)
     }
 
diff --git a/services/s3/common/test/aws/sdk/kotlin/services/s3/express/DefaultS3ExpressCredentialsProviderTest.kt b/services/s3/common/test/aws/sdk/kotlin/services/s3/express/DefaultS3ExpressCredentialsProviderTest.kt
index 78a9a05839b..989f5176259 100644
--- a/services/s3/common/test/aws/sdk/kotlin/services/s3/express/DefaultS3ExpressCredentialsProviderTest.kt
+++ b/services/s3/common/test/aws/sdk/kotlin/services/s3/express/DefaultS3ExpressCredentialsProviderTest.kt
@@ -109,6 +109,7 @@ class DefaultS3ExpressCredentialsProviderTest {
         // allow the async refresh to initiate before closing the provider
         runBlocking { delay(50.milliseconds) }
 
+        provider.coroutineContext.job.join()
         provider.close()
         assertEquals(1, testClient.numCreateSession)
     }
@@ -146,6 +147,7 @@ class DefaultS3ExpressCredentialsProviderTest {
         // allow the async refresh to initiate before closing the provider
         runBlocking { delay(50.milliseconds) }
 
+        provider.coroutineContext.job.join()
         provider.close()
         assertEquals(1, testClient.numCreateSession)
     }
@@ -186,6 +188,7 @@ class DefaultS3ExpressCredentialsProviderTest {
         // allow the async refresh to initiate before closing the provider
         runBlocking { delay(50.milliseconds) }
 
+        provider.coroutineContext.job.join()
         provider.close()
         assertEquals(2, testClient.numCreateSession)
     }