diff --git a/Gopkg.lock b/Gopkg.lock
index 2342d4d..1551cfa 100644
--- a/Gopkg.lock
+++ b/Gopkg.lock
@@ -2,32 +2,43 @@
 
 
 [[projects]]
+  digest = "1:0deddd908b6b4b768cfc272c16ee61e7088a60f7fe2f06c547bd3d8e1f8b8e77"
   name = "github.com/davecgh/go-spew"
   packages = ["spew"]
-  revision = "346938d642f2ec3594ed81d874461961cd0faa76"
-  version = "v1.1.0"
+  pruneopts = ""
+  revision = "8991bc29aa16c548c550c7ff78260e27b9ab7c73"
+  version = "v1.1.1"
 
 [[projects]]
+  digest = "1:0a25af9761bd3aa9e4d197d2ade510be909b6b8169c8792db6e764c7878b27a7"
   name = "github.com/francoispqt/gojay"
   packages = ["."]
-  revision = "efc4a69235597da330054429f6486da6eb48fb68"
-  version = "1.0.1"
+  pruneopts = ""
+  revision = "688c5d008625b62011496858a3e55f852dccd40f"
+  version = "1.2.5"
 
 [[projects]]
+  digest = "1:256484dbbcd271f9ecebc6795b2df8cad4c458dd0f5fd82a8c2fa0c29f233411"
   name = "github.com/pmezard/go-difflib"
   packages = ["difflib"]
+  pruneopts = ""
   revision = "792786c7400a136282c1664665ae0a8db921c6c2"
   version = "v1.0.0"
 
 [[projects]]
+  digest = "1:c587772fb8ad29ad4db67575dad25ba17a51f072ff18a22b4f0257a4d9c24f75"
   name = "github.com/stretchr/testify"
   packages = ["assert"]
-  revision = "12b6f73e6084dad08a7c6e575284b177ecafbc71"
-  version = "v1.2.1"
+  pruneopts = ""
+  revision = "f35b8ab0b5a2cef36673838d662e249dd9c94686"
+  version = "v1.2.2"
 
 [solve-meta]
   analyzer-name = "dep"
   analyzer-version = 1
-  inputs-digest = "4b0f23f0fc1575cb7d3e0b89e7871bf24c1083d3b5aa04311ccbea8f35ca89b9"
+  input-imports = [
+    "github.com/francoispqt/gojay",
+    "github.com/stretchr/testify/assert",
+  ]
   solver-name = "gps-cdcl"
   solver-version = 1
diff --git a/Gopkg.toml b/Gopkg.toml
index ff811c0..0cade7f 100644
--- a/Gopkg.toml
+++ b/Gopkg.toml
@@ -23,4 +23,4 @@
 
 [[constraint]]
   name = "github.com/francoispqt/gojay"
-  version = "1.0.1"
+  version = "1.2.5"
diff --git a/logger.go b/logger.go
index 2d16f85..1a18b2b 100644
--- a/logger.go
+++ b/logger.go
@@ -66,6 +66,7 @@ func (l *Logger) copy() *Logger {
 	nL := Logger{
 		levels: l.levels,
 		w:      l.w,
+		hook:   l.hook,
 	}
 	return &nL
 }