diff --git a/idea/idea-gradle/src/org/jetbrains/kotlin/idea/configuration/KotlinGradleCoroutineDebugProjectResolver.kt b/idea/idea-gradle/src/org/jetbrains/kotlin/idea/configuration/KotlinGradleCoroutineDebugProjectResolver.kt
index b47b05de307..1473605ca65 100644
--- a/idea/idea-gradle/src/org/jetbrains/kotlin/idea/configuration/KotlinGradleCoroutineDebugProjectResolver.kt
+++ b/idea/idea-gradle/src/org/jetbrains/kotlin/idea/configuration/KotlinGradleCoroutineDebugProjectResolver.kt
@@ -31,12 +31,12 @@ class KotlinGradleCoroutineDebugProjectResolver : AbstractProjectResolverExtensi
                 if (task instanceof Test || task instanceof JavaExec) {
                     def kotlinxCoroutinesCoreJar = task.classpath.find { it.name.startsWith("kotlinx-coroutines-core") }
                     if (kotlinxCoroutinesCoreJar) {
-                        def results = (kotlinxCoroutinesCoreJar.getName() =~ /kotlinx-coroutines-core\-([\d\.]+)\.jar${'$'}/).findAll()
+                        def results = (kotlinxCoroutinesCoreJar.getName() =~ /kotlinx-coroutines-core[a-z\-]+(\d[\w\.\-]+)\.jar${'$'}/).findAll()
                         if (results) {
                             def version = results.first()[1]
-                            if (org.gradle.util.VersionNumber.parse( version ) >= org.gradle.util.VersionNumber.parse('1.3.8')) {
+                            def referenceVersion = org.gradle.util.VersionNumber.parse('1.3.7-255')
+                            if (org.gradle.util.VersionNumber.parse(version) > referenceVersion) {
                                 task.jvmArgs ("-javaagent:${'$'}{kotlinxCoroutinesCoreJar?.absolutePath}", "-ea")
-                                return
                             }
                         }
                     }
diff --git a/idea/jvm-debugger/jvm-debugger-coroutine/src/org/jetbrains/kotlin/idea/debugger/coroutine/DebuggerConnection.kt b/idea/jvm-debugger/jvm-debugger-coroutine/src/org/jetbrains/kotlin/idea/debugger/coroutine/DebuggerConnection.kt
index f067bb77d5e..b314d723d5a 100644
--- a/idea/jvm-debugger/jvm-debugger-coroutine/src/org/jetbrains/kotlin/idea/debugger/coroutine/DebuggerConnection.kt
+++ b/idea/jvm-debugger/jvm-debugger-coroutine/src/org/jetbrains/kotlin/idea/debugger/coroutine/DebuggerConnection.kt
@@ -57,12 +57,12 @@ class DebuggerConnection(
     }
 
     private fun determineCoreVersionMode(kotlinxCoroutinesCore: String): CoroutineDebuggerMode {
-        val regex = Regex(""".+\Wkotlinx-coroutines-core-(.+)?\.jar""")
+        val regex = Regex(""".+\Wkotlinx-coroutines-core([\-a-z]+)(\d[\w\.\-]+)?\.jar""")
         val matchResult = regex.matchEntire(kotlinxCoroutinesCore) ?: return CoroutineDebuggerMode.DISABLED
         val versionToCompareTo = DefaultArtifactVersion("1.3.7-255")
 
-        val artifactVersion = DefaultArtifactVersion(matchResult.groupValues[1])
-        return if (artifactVersion >= versionToCompareTo)
+        val artifactVersion = DefaultArtifactVersion(matchResult.groupValues[2])
+        return if (artifactVersion > versionToCompareTo)
             CoroutineDebuggerMode.VERSION_1_3_8_AND_UP
         else
             CoroutineDebuggerMode.DISABLED