diff --git a/CMakeLists.txt b/CMakeLists.txt
index 64973f3..6ea8e63 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -2,7 +2,7 @@ cmake_minimum_required (VERSION 3.5)
 project (qcint C)
 set(qcint_VERSION_MAJOR "5")
 set(qcint_VERSION_MINOR "2")
-set(qcint_VERSION_PATCH "1")
+set(qcint_VERSION_PATCH "2")
 set(qcint_VERSION_TWEAK "0")
 set(qcint_VERSION "${qcint_VERSION_MAJOR}.${qcint_VERSION_MINOR}.${qcint_VERSION_PATCH}")
 set(qcint_SOVERSION "${qcint_VERSION_MAJOR}")
diff --git a/ChangeLog b/ChangeLog
index 8b49ab1..50fcda6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,6 @@
+Version 5.2.2  (2023-03-22):
+	* Improves rys-roots finder accuracy
+
 Version 5.2.1  (2023-03-09):
 	* Improve error handling for SR-ERI integrals
 	* Optimize SR-ERI integral screening
diff --git a/README.md b/README.md
index af7045a..ec9e8e3 100644
--- a/README.md
+++ b/README.md
@@ -3,8 +3,8 @@ qcint (quick libcint)
 
 An optimized libcint branch for X86 platform
 
-version 5.2.1
-2023-03-09
+version 5.2.2
+2023-03-22
 
 
 What is qcint