diff --git a/modules/mssqlserver/build.gradle b/modules/mssqlserver/build.gradle
index 508de84a2f..f0170500e7 100644
--- a/modules/mssqlserver/build.gradle
+++ b/modules/mssqlserver/build.gradle
@@ -10,12 +10,12 @@ dependencies {
     compileOnly 'io.r2dbc:r2dbc-mssql:0.8.4.RELEASE'
 
     testCompile project(':jdbc-test')
-    testCompile 'com.microsoft.sqlserver:mssql-jdbc:8.3.1.jre8-preview'
+    testCompile 'com.microsoft.sqlserver:mssql-jdbc:8.4.1.jre8'
 
     testCompile project(':r2dbc')
     testCompile 'io.r2dbc:r2dbc-mssql:0.8.3.RELEASE'
 
     // MSSQL's wait strategy requires the JDBC driver
     testCompile testFixtures(project(':r2dbc'))
-    testCompile 'com.microsoft.sqlserver:mssql-jdbc:8.3.1.jre8-preview'
+    testCompile 'com.microsoft.sqlserver:mssql-jdbc:8.4.1.jre8'
 }