diff --git a/README.md b/README.md
index c75c540a..0c63e0ef 100644
--- a/README.md
+++ b/README.md
@@ -37,8 +37,6 @@ Please see https://pocketpy.dev for details and try the following resources.
 pkpy should work on any platform with a C11 compiler.
 These platforms are officially tested.
 
-> C99 compilers may also work currently according to users' feedback.
-
 + Windows 64-bit
 + Linux 64-bit / 32-bit
 + macOS 64-bit
diff --git a/docs/index.md b/docs/index.md
index e3a80801..bf31d29b 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -34,8 +34,6 @@ print(primes)
 pkpy should work on any platform with a C11 compiler.
 These platforms are officially tested.
 
-> C99 compilers may also work currently according to users' feedback.
-
 + Windows 64-bit
 + Linux 64-bit / 32-bit
 + macOS 64-bit