diff --git a/tests/regression_fuzz.rs b/tests/regression_fuzz.rs
new file mode 100644
index 0000000..5f92ed0
--- /dev/null
+++ b/tests/regression_fuzz.rs
@@ -0,0 +1,19 @@
+// These tests are only run for the "default" test target because some of them
+// can take quite a long time. Some of them take long enough that it's not
+// practical to run them in debug mode. :-/
+
+// See: https://oss-fuzz.com/testcase-detail/5673225499181056
+//
+// Ignored by default since it takes too long in debug mode (almost a minute).
+#[test]
+#[ignore]
+fn fuzz1() {
+    regex!(r"1}{55}{0}*{1}{55}{55}{5}*{1}{55}+{56}|;**");
+}
+
+// See: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26505
+// See: https://github.com/rust-lang/regex/issues/722
+#[test]
+fn empty_any_errors_no_panic() {
+    assert!(regex_new!(r"\P{any}").is_err());
+}
diff --git a/tests/test_default.rs b/tests/test_default.rs
index c0979c1..241e580 100644
--- a/tests/test_default.rs
+++ b/tests/test_default.rs
@@ -49,6 +49,7 @@
 mod multiline;
 mod noparse;
 mod regression;
+mod regression_fuzz;
 mod replace;
 mod searcher;
 mod set;