diff --git a/Makefile b/Makefile
index fe15c2c..27b50ee 100644
--- a/Makefile
+++ b/Makefile
@@ -14,7 +14,7 @@ htmldir = $(docdir)
 pdfdir = $(docdir)
 mandir = $(prefix)/share/man
 SHA1_HEADER = <openssl/sha.h>
-GIT_VER = 2.46.2
+GIT_VER = 2.47.0
 GIT_URL = https://www.kernel.org/pub/software/scm/git/git-$(GIT_VER).tar.xz
 INSTALL = install
 COPYTREE = cp -r
diff --git a/cgit.c b/cgit.c
index 2efa962..65c38c0 100644
--- a/cgit.c
+++ b/cgit.c
@@ -448,8 +448,8 @@ struct refmatch {
 	int match;
 };
 
-static int find_current_ref(const char *refname, const struct object_id *oid,
-			    int flags, void *cb_data)
+static int find_current_ref(const char *refname, const char *referent UNUSED,
+                            const struct object_id *oid, int flags, void *cb_data)
 {
 	struct refmatch *info;
 
diff --git a/cgit.h b/cgit.h
index e0d286d..9146d9a 100644
--- a/cgit.h
+++ b/cgit.h
@@ -346,8 +346,8 @@ extern void strbuf_ensure_end(struct strbuf *sb, char c);
 
 extern void cgit_add_ref(struct reflist *list, struct refinfo *ref);
 extern void cgit_free_reflist_inner(struct reflist *list);
-extern int cgit_refs_cb(const char *refname, const struct object_id *oid,
-			int flags, void *cb_data);
+extern int cgit_refs_cb(const char *refname, const char *referent UNUSED,
+			const struct object_id *oid, int flags, void *cb_data);
 
 extern void cgit_free_commitinfo(struct commitinfo *info);
 extern void cgit_free_taginfo(struct taginfo *info);
diff --git a/git b/git
index 4f71522..777489f 160000
--- a/git
+++ b/git
@@ -1 +1 @@
-Subproject commit 4f71522dfb7fc53eff569023303980c66114b1bc
+Subproject commit 777489f9e09c8d0dd6b12f9d90de6376330577a2
diff --git a/shared.c b/shared.c
index ae3f6c1..c1403b4 100644
--- a/shared.c
+++ b/shared.c
@@ -212,8 +212,8 @@ void cgit_free_reflist_inner(struct reflist *list)
 	free(list->refs);
 }
 
-int cgit_refs_cb(const char *refname, const struct object_id *oid, int flags,
-		  void *cb_data)
+int cgit_refs_cb(const char *refname, const char *referent UNUSED,
+		 const struct object_id *oid, int flags, void *cb_data)
 {
 	struct reflist *list = (struct reflist *)cb_data;
 	struct refinfo *info = cgit_mk_refinfo(refname, oid);
diff --git a/ui-clone.c b/ui-clone.c
index df196a0..31989a5 100644
--- a/ui-clone.c
+++ b/ui-clone.c
@@ -16,8 +16,8 @@
 #include "packfile.h"
 #include "object-store.h"
 
-static int print_ref_info(const char *refname, const struct object_id *oid,
-                          int flags, void *cb_data)
+static int print_ref_info(const char *refname, const char *referent UNUSED,
+			  const struct object_id *oid, int flags, void *cb_data)
 {
 	struct object *obj;
 
diff --git a/ui-shared.c b/ui-shared.c
index 6fae72d..4250b89 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -936,8 +936,8 @@ void cgit_add_clone_urls(void (*fn)(const char *))
 		add_clone_urls(fn, ctx.cfg.clone_prefix, ctx.repo->url);
 }
 
-static int print_branch_option(const char *refname, const struct object_id *oid,
-			       int flags, void *cb_data)
+static int print_branch_option(const char *refname, const char *referent UNUSED,
+			       const struct object_id *oid, int flags, void *cb_data)
 {
 	char *name = (char *)refname;
 	html_option(name, name, ctx.qry.head);