diff --git a/profiles/clang b/profiles/clang
index 2860100..7e55968 100644
--- a/profiles/clang
+++ b/profiles/clang
@@ -2,7 +2,7 @@
 os=Linux
 arch=x86_64
 compiler=clang
-compiler.version=21
+compiler.version=20
 compiler.libcxx=libstdc++11
 compiler.cppstd=20
 compiler.cstd=17
diff --git a/profiles/clang_coverage b/profiles/clang_coverage
index 3999024..7e108a2 100644
--- a/profiles/clang_coverage
+++ b/profiles/clang_coverage
@@ -2,7 +2,7 @@
 os=Linux
 arch=x86_64
 compiler=clang
-compiler.version=21
+compiler.version=20
 compiler.libcxx=libstdc++11
 compiler.cppstd=20
 compiler.cstd=17
diff --git a/profiles/clangd b/profiles/clangd
index 72fdaf0..5314e13 100644
--- a/profiles/clangd
+++ b/profiles/clangd
@@ -2,7 +2,7 @@
 os=Linux
 arch=x86_64
 compiler=clang
-compiler.version=21
+compiler.version=20
 compiler.libcxx=libstdc++11
 compiler.cppstd=20
 compiler.cstd=17