diff --git a/build.gradle.kts b/build.gradle.kts
index 4b8901b9027..a519ea5a49a 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -18,7 +18,7 @@ buildscript {
     repositories {
         bootstrapKotlinRepo?.let(::maven)
         maven("https://plugins.gradle.org/m2")
-    }
+        }
 
     // a workaround for kotlin compiler classpath in kotlin project: sometimes gradle substitutes
     // kotlin-stdlib external dependency with local project :kotlin-stdlib in kotlinCompilerClasspath configuration.
@@ -266,14 +266,15 @@ allprojects {
         mirrorRepo?.let(::maven)
         bootstrapKotlinRepo?.let(::maven)
         jcenter()
-    }
+        }
 
     configureJvmProject(javaHome!!, jvmTarget!!)
 
     val commonCompilerArgs = listOfNotNull(
         "-Xallow-kotlin-package",
         "-Xread-deserialized-contracts",
-        "-Xprogressive".takeIf { hasProperty("test.progressive.mode") }
+        "-Xprogressive".takeIf { hasProperty("test.progressive.mode") },
+        "-XXLanguage:-ReleaseCoroutines"
     )
 
     tasks.withType<org.jetbrains.kotlin.gradle.dsl.KotlinCompile<*>> {
diff --git a/libraries/stdlib/jdk7/build.gradle b/libraries/stdlib/jdk7/build.gradle
index 2c56243624c..f670b2da37d 100644
--- a/libraries/stdlib/jdk7/build.gradle
+++ b/libraries/stdlib/jdk7/build.gradle
@@ -70,7 +70,7 @@ compileKotlin {
 }
 
 compileTestKotlin {
-    kotlinOptions.freeCompilerArgs = ["-Xallow-kotlin-package", "-Xmulti-platform"]
+    kotlinOptions.freeCompilerArgs = ["-Xallow-kotlin-package", "-Xmulti-platform", "-XXLanguage:-ReleaseCoroutines"]
 }
 
 compileJava9Sources(project, 'kotlin.stdlib.jdk7')
diff --git a/libraries/stdlib/jdk8/build.gradle b/libraries/stdlib/jdk8/build.gradle
index cf64fb19811..f904dac41d5 100644
--- a/libraries/stdlib/jdk8/build.gradle
+++ b/libraries/stdlib/jdk8/build.gradle
@@ -73,7 +73,7 @@ compileKotlin {
 }
 
 compileTestKotlin {
-    kotlinOptions.freeCompilerArgs = ["-Xallow-kotlin-package", "-Xmulti-platform"]
+    kotlinOptions.freeCompilerArgs = ["-Xallow-kotlin-package", "-Xmulti-platform", "-XXLanguage:-ReleaseCoroutines"]
 }
 
 compileJava9Sources(project, 'kotlin.stdlib.jdk8')
diff --git a/libraries/stdlib/jre7/build.gradle b/libraries/stdlib/jre7/build.gradle
index eb85d2316f0..415cc7f40df 100644
--- a/libraries/stdlib/jre7/build.gradle
+++ b/libraries/stdlib/jre7/build.gradle
@@ -63,7 +63,7 @@ compileKotlin {
 }
 
 compileTestKotlin {
-    kotlinOptions.freeCompilerArgs = ["-Xallow-kotlin-package", "-Xmulti-platform"]
+    kotlinOptions.freeCompilerArgs = ["-Xallow-kotlin-package", "-Xmulti-platform", "-XXLanguage:-ReleaseCoroutines"]
 }
 
 kotlin.experimental.coroutines 'enable'
diff --git a/libraries/stdlib/jre8/build.gradle b/libraries/stdlib/jre8/build.gradle
index 2135f549f4e..0c001246998 100644
--- a/libraries/stdlib/jre8/build.gradle
+++ b/libraries/stdlib/jre8/build.gradle
@@ -66,7 +66,7 @@ compileKotlin {
 }
 
 compileTestKotlin {
-    kotlinOptions.freeCompilerArgs = ["-Xallow-kotlin-package", "-Xnormalize-constructor-calls=enable", "-Xmulti-platform"]
+    kotlinOptions.freeCompilerArgs = ["-Xallow-kotlin-package", "-Xnormalize-constructor-calls=enable", "-Xmulti-platform", "-XXLanguage:-ReleaseCoroutines"]
 }
 
 kotlin.experimental.coroutines 'enable'
diff --git a/libraries/stdlib/js/build.gradle b/libraries/stdlib/js/build.gradle
index 857e5c602a8..73b0a54f3c6 100644
--- a/libraries/stdlib/js/build.gradle
+++ b/libraries/stdlib/js/build.gradle
@@ -148,7 +148,8 @@ compileKotlin2Js {
         sourceMapPrefix = "./"
         freeCompilerArgs += [
             "-source-map-base-dirs", [builtinsSrcDir, jsSrcDir, commonSrcDir, commonSrcDir2].collect { file(it).absoluteFile }.join(File.pathSeparator),
-            "-Xuse-experimental=kotlin.Experimental"
+            "-Xuse-experimental=kotlin.Experimental",
+            "-XXLanguage:-ReleaseCoroutines"
         ]
     }
 }
@@ -178,6 +179,9 @@ compileCoroutinesKotlin2Js {
 compileTestKotlin2Js {
     kotlinOptions {
         moduleKind = "umd"
+        freeCompilerArgs += [
+            "-XXLanguage:-ReleaseCoroutines"
+        ]
     }
 }
 
diff --git a/libraries/stdlib/jvm/build.gradle b/libraries/stdlib/jvm/build.gradle
index 8569c03a704..921213d6e47 100644
--- a/libraries/stdlib/jvm/build.gradle
+++ b/libraries/stdlib/jvm/build.gradle
@@ -182,7 +182,8 @@ compileKotlin {
                 "-Xmultifile-parts-inherit",
                 "-Xnormalize-constructor-calls=enable",
                 "-module-name", "kotlin-stdlib",
-                "-Xuse-experimental=kotlin.Experimental"
+                "-Xuse-experimental=kotlin.Experimental",
+                "-XXLanguage:-ReleaseCoroutines"
         ]
     }
 }
diff --git a/libraries/tools/script-runtime/build.gradle b/libraries/tools/script-runtime/build.gradle
index 38b47e1ea0a..0c3c9907cde 100644
--- a/libraries/tools/script-runtime/build.gradle
+++ b/libraries/tools/script-runtime/build.gradle
@@ -45,7 +45,8 @@ compileKotlin {
     kotlinOptions.freeCompilerArgs = [
             "-Xallow-kotlin-package",
             "-Xnormalize-constructor-calls=enable",
-            "-module-name", project.name
+            "-module-name", project.name,
+            "-XXLanguage:-ReleaseCoroutines"
     ]
 }