diff --git a/README.md b/README.md
index 12c18e4..a88207e 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ of .NET bindings for HDF5, not the [LCM](https://en.wikipedia.org/wiki/Least_com
 
 | HDF5 Release Version                                                   | Assembly Version | Assembly File Version | Git Tag |
 | ---------------------------------------------------------------------- | ---------------- | --------------------------------------------------------------- | ------- |
-| [1.8.19](https://support.hdfgroup.org/HDF5/release/obtain518.html)  | 1.8.19.0         | [1.8.19.0](https://www.nuget.org/packages/HDF.PInvoke/1.8.18.0) | v1.8.19.0  |
+| [1.8.20](https://support.hdfgroup.org/HDF5/release/obtain518.html)  | 1.8.20.0         | [1.8.20.0](https://www.nuget.org/packages/HDF.PInvoke/1.8.20.0) | v1.8.20.0  |
 | [1.10.1](https://www.hdfgroup.org/HDF5/release/obtain5.html) | 1.10.1.0         | [1.10.1.0](https://www.nuget.org/packages/HDF.PInvoke/1.10.1.0) | v1.10.1.0 |
 
 [How "stuff" is versioned.](../../wiki/Versioning-and-Releases)
@@ -25,7 +25,7 @@ of .NET bindings for HDF5, not the [LCM](https://en.wikipedia.org/wiki/Least_com
 To install the latest HDF.PInvoke 1.8, run the following command in the
 [Package Manager Console](https://docs.nuget.org/docs/start-here/using-the-package-manager-console)
 ```
-    Install-Package HDF.PInvoke -Version 1.8.19.0
+    Install-Package HDF.PInvoke -Version 1.8.20.0
 ```
 To install the latest HDF.PInvoke 1.10, run the following command in the
 [Package Manager Console](https://docs.nuget.org/docs/start-here/using-the-package-manager-console)
diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index 11f39f8..c2c6bca 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -1,3 +1,6 @@
+##### 1.8.20.0
+* Updated native dependencies (HDF5 1.8.20) 
+
 ##### 1.10.1.0
 * Updated native dependencies (HDF5 1.10.1) 
 * New functions for metadata cache image handling