diff --git a/BUILDING.md b/BUILDING.md
index f019d674c3a728..858f017d692f1a 100644
--- a/BUILDING.md
+++ b/BUILDING.md
@@ -116,7 +116,7 @@ platforms. This is true regardless of entries in the table below.
| macOS | x64 | >= 10.13 | Tier 1 | |
| macOS | arm64 | >= 11 | Experimental | |
| SmartOS | x64 | >= 18 | Tier 2 | |
-| AIX | ppc64be >=power7 | >= 7.2 TL02 | Tier 2 | |
+| AIX | ppc64be >=power7 | >= 7.2 TL04 | Tier 2 | |
| FreeBSD | x64 | >= 11 | Experimental | Downgraded as of Node.js 12 [7](#fn7) |
1: GCC 6 is not provided on the base platform. Users will
@@ -171,7 +171,7 @@ Binaries at are produced on:
| Binary package | Platform and Toolchain |
| --------------------- | ------------------------------------------------------------------------------------------------------------- |
-| aix-ppc64 | AIX 7.1 TL05 on PPC64BE with GCC 6 |
+| aix-ppc64 | AIX 7.2 TL04 on PPC64BE with GCC 8 |
| darwin-x64 (and .pkg) | macOS 10.15, Xcode Command Line Tools 11 with -mmacosx-version-min=10.13 |
| linux-arm64 | CentOS 7 with devtoolset-8 / GCC 8 [8](#fn8) |
| linux-armv7l | Cross-compiled on Ubuntu 18.04 x64 with [custom GCC toolchain](https://github.com/rvagg/rpi-newer-crosstools) |