diff --git a/doc/building.html b/doc/building.html
index 2b137a584bc..a57d3d16abc 100644
--- a/doc/building.html
+++ b/doc/building.html
@@ -607,7 +607,7 @@ be accepted by <code>configure</code>.</p>
 13.2 or newer.</p>
 <p>In general, any version between these two should be usable.</p>
 <h3 id="clang">clang</h3>
-<p>The minimum accepted version of clang is 3.5. Older versions will not
+<p>The minimum accepted version of clang is 13. Older versions will not
 be accepted by <code>configure</code>.</p>
 <p>To use clang instead of gcc on Linux, use
 <code>--with-toolchain-type=clang</code>.</p>
diff --git a/doc/building.md b/doc/building.md
index 7418013dbb7..5812b7529e3 100644
--- a/doc/building.md
+++ b/doc/building.md
@@ -413,7 +413,7 @@ In general, any version between these two should be usable.
 
 ### clang
 
-The minimum accepted version of clang is 3.5. Older versions will not be
+The minimum accepted version of clang is 13. Older versions will not be
 accepted by `configure`.
 
 To use clang instead of gcc on Linux, use `--with-toolchain-type=clang`.
diff --git a/make/autoconf/toolchain.m4 b/make/autoconf/toolchain.m4
index 411ee5a029d..15ebc0cbbbc 100644
--- a/make/autoconf/toolchain.m4
+++ b/make/autoconf/toolchain.m4
@@ -50,7 +50,7 @@ TOOLCHAIN_DESCRIPTION_microsoft="Microsoft Visual Studio"
 TOOLCHAIN_DESCRIPTION_xlc="IBM XL C/C++"
 
 # Minimum supported versions, empty means unspecified
-TOOLCHAIN_MINIMUM_VERSION_clang="3.5"
+TOOLCHAIN_MINIMUM_VERSION_clang="13.0"
 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="17.1.1.4"