diff --git a/CHANGELOG.md b/CHANGELOG.md
index 58c52e2..4558bfb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,8 @@
 # Change Log
 
-## [Unreleased](https://github.com/dalance/sv-parser/compare/v0.13.0...Unreleased) - ReleaseDate
+## [Unreleased](https://github.com/dalance/sv-parser/compare/v0.13.1...Unreleased) - ReleaseDate
+
+## [v0.13.1](https://github.com/dalance/sv-parser/compare/v0.13.0...v0.13.1) - 2023-03-23
 
 * [Changed] update nom to 7
 
diff --git a/README.md b/README.md
index 08ebef7..7cfc886 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ SystemVerilog parser library fully compliant with [IEEE 1800-2017](https://stand
 
 ```Cargo.toml
 [dependencies]
-sv-parser = "0.13.0"
+sv-parser = "0.13.1"
 ```
 
 sv-parser provides [`parse_sv`](https://docs.rs/sv-parser/latest/sv_parser/fn.parse_sv.html) function which returns [`SyntaxTree`](https://docs.rs/sv-parser/latest/sv_parser/struct.SyntaxTree.html).
diff --git a/sv-parser-error/Cargo.toml b/sv-parser-error/Cargo.toml
index e06efb4..f16bda4 100644
--- a/sv-parser-error/Cargo.toml
+++ b/sv-parser-error/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sv-parser-error"
-version = "0.13.0"
+version = "0.13.1"
 authors = ["dalance@gmail.com"]
 repository = "https://github.com/dalance/sv-parser"
 keywords = ["parser", "verilog", "systemverilog"]
diff --git a/sv-parser-macros/Cargo.toml b/sv-parser-macros/Cargo.toml
index 0420dea..7903172 100644
--- a/sv-parser-macros/Cargo.toml
+++ b/sv-parser-macros/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sv-parser-macros"
-version = "0.13.0"
+version = "0.13.1"
 authors = ["dalance@gmail.com"]
 repository = "https://github.com/dalance/sv-parser"
 keywords = ["parser", "verilog", "systemverilog"]
diff --git a/sv-parser-parser/Cargo.toml b/sv-parser-parser/Cargo.toml
index 0d44b11..8b81a62 100644
--- a/sv-parser-parser/Cargo.toml
+++ b/sv-parser-parser/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sv-parser-parser"
-version = "0.13.0"
+version = "0.13.1"
 authors = ["dalance@gmail.com"]
 repository = "https://github.com/dalance/sv-parser"
 keywords = ["parser", "verilog", "systemverilog"]
@@ -28,5 +28,5 @@ nom-packrat          = "0.7"
 nom-recursive        = {version = "0.5", features = ["tracer128"]}
 nom-tracable         = "0.9"
 str-concat           = "0.2"
-sv-parser-macros     = {version = "^0.13.0", path = "../sv-parser-macros"}
-sv-parser-syntaxtree = {version = "^0.13.0", path = "../sv-parser-syntaxtree"}
+sv-parser-macros     = {version = "^0.13.1", path = "../sv-parser-macros"}
+sv-parser-syntaxtree = {version = "^0.13.1", path = "../sv-parser-syntaxtree"}
diff --git a/sv-parser-pp/Cargo.toml b/sv-parser-pp/Cargo.toml
index d4e3676..8d5e87a 100644
--- a/sv-parser-pp/Cargo.toml
+++ b/sv-parser-pp/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sv-parser-pp"
-version = "0.13.0"
+version = "0.13.1"
 authors = ["dalance@gmail.com"]
 repository = "https://github.com/dalance/sv-parser"
 keywords = ["parser", "verilog", "systemverilog"]
@@ -23,6 +23,6 @@ trace   = ["sv-parser-parser/trace"]
 [dependencies]
 nom                  = "7"
 nom-greedyerror      = "0.5"
-sv-parser-error      = {version = "^0.13.0", path = "../sv-parser-error"}
-sv-parser-parser     = {version = "^0.13.0", path = "../sv-parser-parser"}
-sv-parser-syntaxtree = {version = "^0.13.0", path = "../sv-parser-syntaxtree"}
+sv-parser-error      = {version = "^0.13.1", path = "../sv-parser-error"}
+sv-parser-parser     = {version = "^0.13.1", path = "../sv-parser-parser"}
+sv-parser-syntaxtree = {version = "^0.13.1", path = "../sv-parser-syntaxtree"}
diff --git a/sv-parser-syntaxtree/Cargo.toml b/sv-parser-syntaxtree/Cargo.toml
index 8f55a66..1617b84 100644
--- a/sv-parser-syntaxtree/Cargo.toml
+++ b/sv-parser-syntaxtree/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sv-parser-syntaxtree"
-version = "0.13.0"
+version = "0.13.1"
 authors = ["dalance@gmail.com"]
 repository = "https://github.com/dalance/sv-parser"
 keywords = ["parser", "verilog", "systemverilog"]
@@ -18,7 +18,7 @@ doctest = false
 tag = false
 
 [dependencies]
-sv-parser-macros = {version = "^0.13.0", path = "../sv-parser-macros"}
+sv-parser-macros = {version = "^0.13.1", path = "../sv-parser-macros"}
 
 [build-dependencies]
 regex   = "1"
diff --git a/sv-parser/Cargo.toml b/sv-parser/Cargo.toml
index 3b30373..d30a748 100644
--- a/sv-parser/Cargo.toml
+++ b/sv-parser/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sv-parser"
-version = "0.13.0"
+version = "0.13.1"
 authors = ["dalance@gmail.com"]
 repository = "https://github.com/dalance/sv-parser"
 keywords = ["parser", "verilog", "systemverilog"]
@@ -28,10 +28,10 @@ trace   = ["sv-parser-parser/trace"]
 [dependencies]
 nom                  = "7"
 nom-greedyerror      = "0.5"
-sv-parser-error      = {version = "^0.13.0", path = "../sv-parser-error"}
-sv-parser-parser     = {version = "^0.13.0", path = "../sv-parser-parser"}
-sv-parser-pp         = {version = "^0.13.0", path = "../sv-parser-pp"}
-sv-parser-syntaxtree = {version = "^0.13.0", path = "../sv-parser-syntaxtree"}
+sv-parser-error      = {version = "^0.13.1", path = "../sv-parser-error"}
+sv-parser-parser     = {version = "^0.13.1", path = "../sv-parser-parser"}
+sv-parser-pp         = {version = "^0.13.1", path = "../sv-parser-pp"}
+sv-parser-syntaxtree = {version = "^0.13.1", path = "../sv-parser-syntaxtree"}
 
 [dev-dependencies]
 structopt = "0.3.2"