diff --git a/CHANGELOG.md b/CHANGELOG.md
index b1e91513..20241366 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,7 @@
 * fix: Remove cache file & regenerate it if it is corrupt.
 * fix: `NullTransformer` bug.
 * fix(`CachingMappingFactory`): Cache result in memory.
+* fix(`CachingMappingFactory`): Skip the cache if in debug mode.
 
 ## 0.5.8
 
diff --git a/src/Mapping/CachingMappingFactory.php b/src/Mapping/CachingMappingFactory.php
index 6fb0a2ec..c7e02ea8 100644
--- a/src/Mapping/CachingMappingFactory.php
+++ b/src/Mapping/CachingMappingFactory.php
@@ -47,6 +47,10 @@ public function getMapping(): Mapping
             return $this->mapping;
         }
 
+        if ($this->kernel->isDebug()) {
+            return $this->mapping = $this->warmUpAndGetMapping();
+        }
+
         if (!file_exists($this->getCacheFilePath())) {
             return $this->mapping = $this->warmUpAndGetMapping();
         }