diff --git a/build.gradle.kts b/build.gradle.kts
index a74101bfd..65f958196 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -10,7 +10,6 @@
 @file:Suppress("UnstableApiUsage", "UNUSED_VARIABLE", "NULLABILITY_MISMATCH_BASED_ON_JAVA_ANNOTATIONS")
 
 import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
-import net.mamoe.kjbb.compiler.UnitCoercion.COMPATIBILITY
 import org.jetbrains.dokka.gradle.DokkaTask
 import org.jetbrains.kotlin.gradle.dsl.*
 import org.jetbrains.kotlin.gradle.plugin.KotlinCompilation
@@ -91,9 +90,9 @@ allprojects {
         configureKotlinCompilerSettings()
         configureKotlinExperimentalUsages()
 
-        blockingBridge {
-            unitCoercion = COMPATIBILITY
-        }
+        // blockingBridge {
+        //     unitCoercion = COMPATIBILITY
+        // }
 
         //  useIr()
 
diff --git a/buildSrc/src/main/kotlin/Versions.kt b/buildSrc/src/main/kotlin/Versions.kt
index b720625dc..b2e15431b 100644
--- a/buildSrc/src/main/kotlin/Versions.kt
+++ b/buildSrc/src/main/kotlin/Versions.kt
@@ -28,7 +28,7 @@ object Versions {
     const val io = "0.1.16"
     const val coroutinesIo = "0.1.16"
 
-    const val blockingBridge = "1.7.3"
+    const val blockingBridge = "1.6.0"
 
     const val androidGradlePlugin = "3.5.3"