diff --git a/.github/workflows/master.yml b/.github/workflows/master.yml
index e8c982ca7..0c6ed989b 100644
--- a/.github/workflows/master.yml
+++ b/.github/workflows/master.yml
@@ -111,11 +111,12 @@ jobs:
           - '1.15'
         flink-archive: [ "" ]
         comment: [ "normal" ]
-        include:
-          - java: 8
-            flink: '1.15'
-            flink-archive: '-Dflink.archive.mirror=https://archive.apache.org/dist/flink/flink-1.15.1 -Dflink.archive.name=flink-1.15.1-bin-scala_2.12.tgz'
-            comment: 'verify-flink-1.15'
+        # FIXME: Cross Flink versions verification is not supported yet
+        # include:
+          # - java: 8
+            # flink: '1.15'
+            # flink-archive: '-Dflink.archive.mirror=https://archive.apache.org/dist/flink/flink-1.14.5 -Dflink.archive.name=flink-1.14.5-bin-scala_2.12.tgz'
+            # comment: 'verify-flink-1.14'
     steps:
       - uses: actions/checkout@v2
       - name: Tune Runner VM
diff --git a/docs/quick_start/quick_start.md b/docs/quick_start/quick_start.md
index e0dd99b1b..2099ed352 100644
--- a/docs/quick_start/quick_start.md
+++ b/docs/quick_start/quick_start.md
@@ -154,7 +154,7 @@ Similar to `JAVA_HOME`, you can also set `FLINK_HOME` in different ways. However
 For example,
 
 ```bash
-FLINK_HOME=/Downloads/flink-1.14.4
+FLINK_HOME=/Downloads/flink-1.15.1
 ```
 
 #### Setup Kyuubi Flink Configration
diff --git a/kyuubi-server/src/test/scala/org/apache/kyuubi/engine/flink/FlinkProcessBuilderSuite.scala b/kyuubi-server/src/test/scala/org/apache/kyuubi/engine/flink/FlinkProcessBuilderSuite.scala
index 211105dea..79f23c7c6 100644
--- a/kyuubi-server/src/test/scala/org/apache/kyuubi/engine/flink/FlinkProcessBuilderSuite.scala
+++ b/kyuubi-server/src/test/scala/org/apache/kyuubi/engine/flink/FlinkProcessBuilderSuite.scala
@@ -22,8 +22,9 @@ import java.util
 
 import scala.collection.JavaConverters._
 import scala.collection.immutable.ListMap
+import scala.util.matching.Regex
 
-import org.apache.kyuubi.{FLINK_COMPILE_VERSION, KyuubiException, KyuubiFunSuite, SCALA_COMPILE_VERSION}
+import org.apache.kyuubi.{KyuubiException, KyuubiFunSuite}
 import org.apache.kyuubi.config.KyuubiConf
 import org.apache.kyuubi.config.KyuubiConf.{ENGINE_FLINK_EXTRA_CLASSPATH, ENGINE_FLINK_JAVA_OPTIONS, ENGINE_FLINK_MEMORY}
 import org.apache.kyuubi.engine.flink.FlinkProcessBuilder._
@@ -45,16 +46,18 @@ class FlinkProcessBuilderSuite extends KyuubiFunSuite {
     (FLINK_HADOOP_CLASSPATH_KEY -> s"${File.separator}hadoop")
   private def confStr: String = {
     conf.clone.set("yarn.tags", "KYUUBI").getAll
-      .map { case (k, v) => s"\\\n\t--conf $k=$v" }
+      .map { case (k, v) => s"\\\\\\n\\t--conf $k=$v" }
       .mkString(" ")
   }
-  private def compareActualAndExpected(builder: FlinkProcessBuilder): Unit = {
+  private def matchActualAndExpected(builder: FlinkProcessBuilder): Unit = {
     val actualCommands = builder.toString
     val classpathStr = constructClasspathStr(builder)
     val expectedCommands =
       s"$javaPath -Xmx512m -agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5005 " +
-        s"-cp $classpathStr $mainClassStr \\\n\t--conf kyuubi.session.user=vinoyang $confStr"
-    assert(actualCommands == expectedCommands)
+        s"-cp $classpathStr $mainClassStr \\\\\\n\\t--conf kyuubi.session.user=vinoyang $confStr"
+    val regex = new Regex(expectedCommands)
+    val matcher = regex.pattern.matcher(actualCommands)
+    assert(matcher.matches())
   }
 
   private def constructClasspathStr(builder: FlinkProcessBuilder) = {
@@ -62,8 +65,8 @@ class FlinkProcessBuilderSuite extends KyuubiFunSuite {
     builder.mainResource.foreach(classpathEntries.add)
 
     val flinkHome = builder.flinkHome
-    classpathEntries.add(s"$flinkHome$flinkSqlClientJarPathSuffix")
-    classpathEntries.add(s"$flinkHome$flinkLibPathSuffix")
+    classpathEntries.add(s"$flinkHome$flinkSqlClientJarPathSuffixRegex")
+    classpathEntries.add(s"$flinkHome$flinkLibPathSuffixRegex")
     classpathEntries.add(s"$flinkHome$flinkConfPathSuffix")
     val envMap = builder.env
     envMap.foreach { case (k, v) =>
@@ -78,9 +81,9 @@ class FlinkProcessBuilderSuite extends KyuubiFunSuite {
   }
 
   private val javaPath = s"${envDefault("JAVA_HOME")}${File.separator}bin${File.separator}java"
-  private val flinkSqlClientJarPathSuffix = s"${File.separator}opt${File.separator}" +
-    s"flink-sql-client_$SCALA_COMPILE_VERSION-$FLINK_COMPILE_VERSION.jar"
-  private val flinkLibPathSuffix = s"${File.separator}lib${File.separator}*"
+  private val flinkSqlClientJarPathSuffixRegex = s"${File.separator}opt${File.separator}" +
+    s"flink-sql-client-.*.jar"
+  private val flinkLibPathSuffixRegex = s"${File.separator}lib${File.separator}\\*"
   private val flinkConfPathSuffix = s"${File.separator}conf"
   private val mainClassStr = "org.apache.kyuubi.engine.flink.FlinkSQLEngine"
 
@@ -88,7 +91,7 @@ class FlinkProcessBuilderSuite extends KyuubiFunSuite {
     val builder = new FlinkProcessBuilder("vinoyang", conf) {
       override def env: Map[String, String] = envWithAllHadoop
     }
-    compareActualAndExpected(builder)
+    matchActualAndExpected(builder)
   }
 
   test("all hadoop related environment variables are configured except FLINK_HADOOP_CLASSPATH") {
@@ -102,6 +105,6 @@ class FlinkProcessBuilderSuite extends KyuubiFunSuite {
       override def env: Map[String, String] = envDefault +
         (FLINK_HADOOP_CLASSPATH_KEY -> s"${File.separator}hadoop")
     }
-    compareActualAndExpected(builder)
+    matchActualAndExpected(builder)
   }
 }
diff --git a/pom.xml b/pom.xml
index a90d36c49..0f8639a7d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -115,8 +115,8 @@
         <delta.version>2.0.0</delta.version>
         <failsafe.verion>2.4.4</failsafe.verion>
         <fb303.version>0.9.3</fb303.version>
-        <flink.version>1.14.5</flink.version>
-        <flink.module.scala.suffix>_${scala.binary.version}</flink.module.scala.suffix>
+        <flink.version>1.15.1</flink.version>
+        <flink.module.scala.suffix></flink.module.scala.suffix>
         <flink.archive.name>flink-${flink.version}-bin-scala_${scala.binary.version}.tgz</flink.archive.name>
         <flink.archive.mirror>${apache.archive.dist}/flink/flink-${flink.version}</flink.archive.mirror>
         <flink.archive.download.skip>false</flink.archive.download.skip>