diff --git a/.gitignore b/.gitignore
index 8eef591..9436cef 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@
 /ExtUtils-HasCompiler-0.014.tar.gz
 /ExtUtils-HasCompiler-0.016.tar.gz
 /ExtUtils-HasCompiler-0.017.tar.gz
+/ExtUtils-HasCompiler-0.021.tar.gz
diff --git a/sources b/sources
index 2ebcf92..32b30fc 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (ExtUtils-HasCompiler-0.017.tar.gz) = cd22adb5bad8c2b2e5708d403fefc90ca19efe2003a28f28170252e9027fec4c65e7c224220795302b7cfa9c5d4005a7c55d661f11d12703227f7884a724e2f6
+SHA512 (ExtUtils-HasCompiler-0.021.tar.gz) = 54ca2ef39d5c7f0d550accfcb410dcafc88b1553c1f03bc507597d5d04fc9327598d94ecc17cc1aec8ae2d875e230e200bcfa5a5f1eae8c2d1495be0c6a18504