diff --git a/src/main/java/core/basesyntax/Counter.java b/src/main/java/core/basesyntax/Counter.java
index 4af46bd4..4aae46e2 100644
--- a/src/main/java/core/basesyntax/Counter.java
+++ b/src/main/java/core/basesyntax/Counter.java
@@ -12,11 +12,22 @@ public Counter(int value) {
         this.value = value;
     }
 
-    public void decreaseValue() {
-        logger.info(String.format(MESSAGE,
-                "Before decrementing", Thread.currentThread().getName(), value));
+    public synchronized void decreaseValue() {
+        logger.info(String.format(
+                MESSAGE,
+                "Before decrementing",
+                Thread.currentThread().getName(),
+                value
+        ));
+
         value--;
-        logger.info(String.format(MESSAGE,
-                "After decrementing", Thread.currentThread().getName(), value));
+
+        logger.info(String.format(
+                MESSAGE,
+                "After decrementing",
+                Thread.currentThread().getName(),
+                value
+        ));
     }
 }
+