1 files changed, 3 insertions, 3 deletions
diff --git a/ext/digest/digest.h b/ext/digest/digest.h
index 6e4906c859..85848d5682 100644
--- a/ext/digest/digest.h
+++ b/ext/digest/digest.h
@@ -15,11 +15,11 @@
 
 #include "ruby.h"
 
-#define RUBY_DIGEST_API_VERSION	2
+#define RUBY_DIGEST_API_VERSION	3
 
-typedef void (*rb_digest_hash_init_func_t)(void *);
+typedef int (*rb_digest_hash_init_func_t)(void *);
 typedef void (*rb_digest_hash_update_func_t)(void *, unsigned char *, size_t);
-typedef void (*rb_digest_hash_finish_func_t)(void *, unsigned char *);
+typedef int (*rb_digest_hash_finish_func_t)(void *, unsigned char *);
 
 typedef struct {
     int api_version;