diff --git a/deps/vpx/include/vpx/vpx_encoder.h b/deps/vpx/include/vpx/vpx_encoder.h
index c45d1a2b..e65d2722 100644
--- a/deps/vpx/include/vpx/vpx_encoder.h
+++ b/deps/vpx/include/vpx/vpx_encoder.h
@@ -970,12 +970,21 @@ vpx_codec_err_t vpx_codec_enc_config_set(vpx_codec_ctx_t *ctx,
  *
  * Retrieves a stream level global header packet, if supported by the codec.
  *
+ * \li VP8: Unsupported
+ * \li VP9: Returns a buffer of <tt>ID (1 byte)|Length (1 byte)|Length
+ * bytes</tt> values. The function should be called after encoding to retrieve
+ * the most accurate information.
+ *
  * \param[in]    ctx     Pointer to this instance's context
  *
  * \retval NULL
  *     Encoder does not support global header
  * \retval Non-NULL
- *     Pointer to buffer containing global header packet
+ *     Pointer to buffer containing global header packet. The buffer pointer
+ *     and its contents are only valid for the lifetime of \a ctx. The contents
+ *     may change in subsequent calls to the function.
+ * \sa
+ * https://www.webmproject.org/docs/container/#vp9-codec-feature-metadata-codecprivate
  */
 vpx_fixed_buf_t *vpx_codec_get_global_headers(vpx_codec_ctx_t *ctx);
 
diff --git a/deps/vpx/include/vpx/vpx_image.h b/deps/vpx/include/vpx/vpx_image.h
index 1adc9b9d..a0c16c34 100644
--- a/deps/vpx/include/vpx/vpx_image.h
+++ b/deps/vpx/include/vpx/vpx_image.h
@@ -132,10 +132,13 @@ typedef struct vpx_image_rect {
  *                         is NULL, the storage for the descriptor will be
  *                         allocated on the heap.
  * \param[in]    fmt       Format for the image
- * \param[in]    d_w       Width of the image
- * \param[in]    d_h       Height of the image
+ * \param[in]    d_w       Width of the image. Must not exceed 0x08000000
+ *                         (2^27).
+ * \param[in]    d_h       Height of the image. Must not exceed 0x08000000
+ *                         (2^27).
  * \param[in]    align     Alignment, in bytes, of the image buffer and
- *                         each row in the image(stride).
+ *                         each row in the image (stride). Must not exceed
+ *                         65536.
  *
  * \return Returns a pointer to the initialized image descriptor. If the img
  *         parameter is non-null, the value of the img parameter will be
@@ -155,9 +158,12 @@ vpx_image_t *vpx_img_alloc(vpx_image_t *img, vpx_img_fmt_t fmt,
  *                             parameter is NULL, the storage for the descriptor
  *                             will be allocated on the heap.
  * \param[in]    fmt           Format for the image
- * \param[in]    d_w           Width of the image
- * \param[in]    d_h           Height of the image
- * \param[in]    stride_align  Alignment, in bytes, of each row in the image.
+ * \param[in]    d_w           Width of the image. Must not exceed 0x08000000
+ *                             (2^27).
+ * \param[in]    d_h           Height of the image. Must not exceed 0x08000000
+ *                             (2^27).
+ * \param[in]    stride_align  Alignment, in bytes, of each row in the image
+ *                             (stride). Must not exceed 65536.
  * \param[in]    img_data      Storage to use for the image
  *
  * \return Returns a pointer to the initialized image descriptor. If the img
diff --git a/deps/vpx/lib/libvpx.a b/deps/vpx/lib/libvpx.a
index 30b574a4..1ecba2ad 100644
Binary files a/deps/vpx/lib/libvpx.a and b/deps/vpx/lib/libvpx.a differ
diff --git a/deps/vpx/lib/pkgconfig/vpx.pc b/deps/vpx/lib/pkgconfig/vpx.pc
index c3de15e5..c1db27d1 100644
--- a/deps/vpx/lib/pkgconfig/vpx.pc
+++ b/deps/vpx/lib/pkgconfig/vpx.pc
@@ -1,4 +1,4 @@
-# pkg-config file from libvpx v1.14.0
+# pkg-config file from libvpx v1.14.1
 prefix=
 exec_prefix=${prefix}
 libdir=${exec_prefix}/lib
@@ -6,7 +6,7 @@ includedir=${prefix}/include
 
 Name: vpx
 Description: WebM Project VPx codec implementation
-Version: 1.14.0
+Version: 1.14.1
 Requires:
 Conflicts:
 Libs: -L${libdir} -lvpx -lm