diff --git a/gradle.properties b/gradle.properties
index b9cc1fca..697dc73f 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -11,7 +11,7 @@ bcelVersion = 6.6.0
 kotlinPoetVersion = 1.9.0
 javassistVersion = 3.28.0-GA
 uuidVersion = 0.3.1
-jacocoVersion = 0.8.7
+jacocoVersion = 0.8.12
 transmittableThreadLocalVersion = 2.12.2
 shadowPluginVersion = 6.1.0
 logbackVersion = 1.2.12
diff --git a/test2code/src/main/kotlin/com/epam/drill/test2code/classloading/ClassPathScanner.kt b/test2code/src/main/kotlin/com/epam/drill/test2code/classloading/ClassPathScanner.kt
index 2977612b..32d6853a 100644
--- a/test2code/src/main/kotlin/com/epam/drill/test2code/classloading/ClassPathScanner.kt
+++ b/test2code/src/main/kotlin/com/epam/drill/test2code/classloading/ClassPathScanner.kt
@@ -42,7 +42,9 @@ class ClassPathScanner(
     private val scannedBuffer = mutableSetOf<ClassSource>()
 
     private val getOrLogFail: Result<Int>.() -> Int = {
-        this.onFailure { logger.warn { "ClassPathScanner: error handling class file: ${it.message}" } }
+        this.onFailure {
+            logger.warn { "ClassPathScanner: error handling class file: ${it.message} ${it.stackTraceToString()}" }
+        }
         this.getOrDefault(0)
     }
 
diff --git a/test2code/src/main/kotlin/com/epam/drill/test2code/coverage/Instrumentation.kt b/test2code/src/main/kotlin/com/epam/drill/test2code/coverage/Instrumentation.kt
index e6760083..31c8f43b 100644
--- a/test2code/src/main/kotlin/com/epam/drill/test2code/coverage/Instrumentation.kt
+++ b/test2code/src/main/kotlin/com/epam/drill/test2code/coverage/Instrumentation.kt
@@ -72,7 +72,7 @@ class DrillInstrumenter(
 
         writer.toByteArray()
     } catch (e: Exception) {
-        logger.error { "Error while instrumenting $className: ${e.message}" }
+        logger.error { "Error instrumenting $className: ${e.message} ${e.stackTraceToString()}" }
         null
     }
 }