diff --git a/config/pac.m4 b/config/pac.m4
index 47d49e82..75a1bdd5 100644
--- a/config/pac.m4
+++ b/config/pac.m4
@@ -178,7 +178,7 @@ AC_DEFUN(PAC_HAVE_MODERN_GFORTRAN,
  ac_fc=${MPIFC-$FC};
  AC_COMPILE_IFELSE([
            program main
-#if ( __GNUC__ >= 4 && __GNUC_MINOR__ >= 6 ) || ( __GNUC__ > 4 )
+#if ( __GNUC__ >= 4 && __GNUC_MINOR__ >= 8 ) || ( __GNUC__ > 4 )
               print *, "ok"
 #else
         this program will fail
diff --git a/configure b/configure
index 9586a66d..d6fd0910 100755
--- a/configure
+++ b/configure
@@ -5757,7 +5757,7 @@ ac_compiler_gnu=$ac_cv_fc_compiler_gnu
  cat >conftest.$ac_ext <<_ACEOF
 
            program main
-#if ( __GNUC__ >= 4 && __GNUC_MINOR__ >= 6 ) || ( __GNUC__ > 4 )
+#if ( __GNUC__ >= 4 && __GNUC_MINOR__ >= 8 ) || ( __GNUC__ > 4 )
               print *, "ok"
 #else
         this program will fail