2 files changed, 3 insertions, 1 deletions
diff --git a/version.h b/version.h
index a9688290f1..5e65375fb1 100644
--- a/version.h
+++ b/version.h
@@ -1,6 +1,6 @@
 #define RUBY_VERSION "2.6.7"
 #define RUBY_RELEASE_DATE "2021-04-05"
-#define RUBY_PATCHLEVEL 189
+#define RUBY_PATCHLEVEL 190
 
 #define RUBY_RELEASE_YEAR 2021
 #define RUBY_RELEASE_MONTH 4
diff --git a/vm.c b/vm.c
index 6d54a81719..0954aa79af 100644
--- a/vm.c
+++ b/vm.c
@@ -2292,6 +2292,8 @@ ruby_vm_destruct(rb_vm_t *vm)
 	if (objspace) {
 	    rb_objspace_free(objspace);
 	}
+        rb_native_mutex_destroy(&vm->waitpid_lock);
+        rb_native_mutex_destroy(&vm->workqueue_lock);
 	/* after freeing objspace, you *can't* use ruby_xfree() */
 	ruby_mimfree(vm);
 	ruby_current_vm_ptr = NULL;