diff --git a/multimedia/aom/Makefile b/multimedia/aom/Makefile
index 04404c0cf14..9f91275d77b 100644
--- a/multimedia/aom/Makefile
+++ b/multimedia/aom/Makefile
@@ -1,6 +1,6 @@
 COMMENT=	Alliance for Open Media AV1 video codec
 
-V=		3.12.1
+V=		3.13.1
 DISTNAME=	libaom-$V
 PKGNAME=	aom-$V
 CATEGORIES=	multimedia
diff --git a/multimedia/aom/distinfo b/multimedia/aom/distinfo
index 23fc92e8785..66cee41f797 100644
--- a/multimedia/aom/distinfo
+++ b/multimedia/aom/distinfo
@@ -1,2 +1,2 @@
-SHA256 (libaom-3.12.1.tar.gz) = npd1GA3sff1hp54AvaOAnUOJGu5rLjMf9/JphiB+oi4=
-SIZE (libaom-3.12.1.tar.gz) = 5497367
+SHA256 (libaom-3.13.1.tar.gz) = GeRaWnGS1pBWUimYPa2QDna1E6AjBsEgU/uaJiy+yn0=
+SIZE (libaom-3.13.1.tar.gz) = 6253958
diff --git a/multimedia/aom/patches/patch-CMakeLists_txt b/multimedia/aom/patches/patch-CMakeLists_txt
index b1cffb02efc..b02525d7c60 100644
--- a/multimedia/aom/patches/patch-CMakeLists_txt
+++ b/multimedia/aom/patches/patch-CMakeLists_txt
@@ -1,7 +1,7 @@
 Index: CMakeLists.txt
 --- CMakeLists.txt.orig
 +++ CMakeLists.txt
-@@ -861,7 +861,7 @@ if(BUILD_SHARED_LIBS)
+@@ -905,7 +905,7 @@ if(BUILD_SHARED_LIBS)
    # https://clang.llvm.org/docs/AddressSanitizer.html#usage. Similarly, see
    # https://clang.llvm.org/docs/MemorySanitizer.html#usage.
    if(NOT
diff --git a/multimedia/aom/patches/patch-aom_ports_ppc_cpudetect_c b/multimedia/aom/patches/patch-aom_ports_ppc_cpudetect_c
index 3ed1b907b78..5fbf7ecf7b1 100644
--- a/multimedia/aom/patches/patch-aom_ports_ppc_cpudetect_c
+++ b/multimedia/aom/patches/patch-aom_ports_ppc_cpudetect_c
@@ -1,21 +1,24 @@
-Add PowerPC CPU feature detection support for OpenBSD.
-
 Index: aom_ports/ppc_cpudetect.c
 --- aom_ports/ppc_cpudetect.c.orig
 +++ aom_ports/ppc_cpudetect.c
-@@ -9,11 +9,8 @@
+@@ -9,7 +9,6 @@
   * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
   */
  
 -#include <fcntl.h>
  #include <unistd.h>
  #include <stdint.h>
+ 
+@@ -18,8 +17,6 @@
+ #include "aom_ports/ppc.h"
+ 
+ #if CONFIG_RUNTIME_CPU_DETECT
 -#include <asm/cputable.h>
 -#include <linux/auxvec.h>
  
- #include "config/aom_config.h"
- 
-@@ -37,6 +34,12 @@ static int cpu_env_mask(void) {
+ static int cpu_env_flags(int *flags) {
+   char *env;
+@@ -38,6 +35,12 @@ static int cpu_env_mask(void) {
    return env && *env ? (int)strtol(env, NULL, 0) : ~0;
  }
  
@@ -28,7 +31,7 @@ Index: aom_ports/ppc_cpudetect.c
  int ppc_simd_caps(void) {
    int flags;
    int mask;
-@@ -75,7 +78,40 @@ out_close:
+@@ -76,7 +79,40 @@ out_close:
    close(fd);
    return flags & mask;
  }