diff --git a/PrmPkg/Readme.md b/PrmPkg/Readme.md
index 3191c039fd..252d5f1ca5 100644
--- a/PrmPkg/Readme.md
+++ b/PrmPkg/Readme.md
@@ -14,9 +14,9 @@ to be leveraged by platform firmware with minimal overhead to integrate PRM func
 `PlatformRtMechanism`. Support for this OperationRegion is planned for the next release of the ACPI specification.
 However, support for `PlatformRtMechanism` is already included in the iASL Compiler/Disassembler for early prototyping
 (i.e. this package). If you would like the default build to work and/or to use PRM handlers that are invoked
-through ACPI, iASL compiler [20200528](https://acpica.org/node/181) or greater must be used. If you are only
-interested in compiling the code and/or using direct call style PRM handlers, you can simply remove
-`PrmSsdtInstallDxe` from `PrmPkg.dsc`.
+through ACPI, iASL compiler [20200528](https://www.intel.com/content/www/us/en/download/774849/774861/acpi-component-architecture-downloads-previous-releases-2020.html)
+or greater must be used. If you are only interested in compiling the code and/or using direct call style PRM
+handlers, you can simply remove `PrmSsdtInstallDxe` from `PrmPkg.dsc`.
 
 The changes in the ACPI Specification include two elements: