diff --git a/doc/building.html b/doc/building.html
index 29d0ace19b0..2b137a584bc 100644
--- a/doc/building.html
+++ b/doc/building.html
@@ -562,7 +562,7 @@ system and toolchain.</p>
 </tr>
 <tr class="odd">
 <td>AIX</td>
-<td>IBM XL C/C++</td>
+<td>IBM Open XL C/C++</td>
 </tr>
 <tr class="even">
 <td>Windows</td>
diff --git a/doc/building.md b/doc/building.md
index 14409b40668..7418013dbb7 100644
--- a/doc/building.md
+++ b/doc/building.md
@@ -382,7 +382,7 @@ one-to-one correlation between target operating system and toolchain.
 | ------------------ | ------------------------- |
 | Linux              | gcc, clang                |
 | macOS              | Apple Xcode (using clang) |
-| AIX                | IBM XL C/C++              |
+| AIX                | IBM Open XL C/C++         |
 | Windows            | Microsoft Visual Studio   |
 
 Please see the individual sections on the toolchains for version
diff --git a/make/autoconf/toolchain.m4 b/make/autoconf/toolchain.m4
index de0b6f0adfb..411ee5a029d 100644
--- a/make/autoconf/toolchain.m4
+++ b/make/autoconf/toolchain.m4
@@ -53,7 +53,7 @@ TOOLCHAIN_DESCRIPTION_xlc="IBM XL C/C++"
 TOOLCHAIN_MINIMUM_VERSION_clang="3.5"
 TOOLCHAIN_MINIMUM_VERSION_gcc="10.0"
 TOOLCHAIN_MINIMUM_VERSION_microsoft="19.28.0.0" # VS2019 16.8, aka MSVC 14.28
-TOOLCHAIN_MINIMUM_VERSION_xlc="16.1.0.0011"
+TOOLCHAIN_MINIMUM_VERSION_xlc="17.1.1.4"
 
 # Minimum supported linker versions, empty means unspecified
 TOOLCHAIN_MINIMUM_LD_VERSION_gcc="2.18"