diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9d20bee..aa26dac 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Change Log
 
+## 0.5.2
+
+- heta-compiler updated to v0.8.4
+
 ## 0.5.1
 
 - statics and constants usage in events fix 
diff --git a/Project.toml b/Project.toml
index 0757856..a1482b0 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "HetaSimulator"
 uuid = "630b40c4-2f38-41ff-bcb3-b2c7232fed0d"
 authors = ["Ivan Borisov", "Evgeny Metelkin"]
-version = "0.5.1"
+version = "0.5.2"
 
 [deps]
 CSV = "336ed68f-0bac-5ca0-87d4-7b16caf5d00b"
diff --git a/README.md b/README.md
index 433593f..9e20880 100644
--- a/README.md
+++ b/README.md
@@ -36,8 +36,8 @@ julia> ]
 Internally HetaSimulator uses heta-compiler. 
 Sometimes it is required to update the compiler's version.
 ```julia
-# update heta compiler for v0.8.1
-julia> heta_update("0.8.1") 
+# update heta compiler for v0.8.4
+julia> heta_update("0.8.4") 
 ```
 
 ## Basic usage