diff --git a/depends/packages/gmp.mk b/depends/packages/gmp.mk
index afc3f39a..343956aa 100644
--- a/depends/packages/gmp.mk
+++ b/depends/packages/gmp.mk
@@ -1,8 +1,8 @@
 package=gmp
-$(package)_version=6.1.2
+$(package)_version=6.3.0
 $(package)_download_path=https://gmplib.org/download/gmp
-$(package)_file_name=$(package)-$($(package)_version).tar.bz2
-$(package)_sha256_hash=5275bb04f4863a13516b2f39392ac5e272f5e1bb8057b18aec1c9b79d73d8fb2
+$(package)_file_name=$(package)-$($(package)_version).tar.xz
+$(package)_sha256_hash=a3c2b80201b89e68616f4ad30bc66aee4927c3ce50e33929ca819d5c43538898
 
 define $(package)_set_vars
 $(package)_config_opts=--disable-shared
@@ -21,4 +21,3 @@ endef
 define $(package)_stage_cmds
   $(MAKE) DESTDIR=$($(package)_staging_dir) install
 endef
-
diff --git a/doc/build-windows.md b/doc/build-windows.md
index a1322059..a5499d6b 100644
--- a/doc/build-windows.md
+++ b/doc/build-windows.md
@@ -246,7 +246,7 @@ DEPENDS BASELINE NOTE
 The 2.0 branch currently verifies Windows x86_64 builds against the same
 modernized core dependency baseline as Linux: OpenSSL 3.5.6, Boost 1.91.0,
 Qt 6.8.3, Berkeley DB 4.8.30, protobuf 2.6.1, libevent 2.1.8-stable, and GMP
-6.1.2. Expat 2.8.0 and FreeType 2.14.3 are part of the Linux Qt/font depends
+6.3.0. Expat 2.8.0 and FreeType 2.14.3 are part of the Linux Qt/font depends
 path and are documented in `doc/dependencies.md`.
 
 ============================================================
diff --git a/doc/dependencies.md b/doc/dependencies.md
index 662f1de4..7349b9a4 100644
--- a/doc/dependencies.md
+++ b/doc/dependencies.md
@@ -23,7 +23,7 @@ branch. You can find instructions for installing or building them in the
 | librsvg | |  |  |  |  |
 | MiniUPnPc | [2.3.3](https://miniupnp.tuxfamily.org/files/) |  | No |  |  |
 | OpenSSL | [3.5.6](https://www.openssl.org/source) |  | No |  |  |
-| GMP | [6.1.2](https://gmplib.org/) | | No | | |
+| GMP | [6.3.0](https://gmplib.org/) | | No | | |
 | PCRE |  |  |  |  | [Yes](https://github.com/agrarian-project/agrarian/blob/master/depends/packages/qt.mk#L66) |
 | protobuf | [2.6.1](https://github.com/google/protobuf/releases) |  | No |  |  |
 | Python (tests) |  | [3.5](https://www.python.org/downloads) |  |  |  |
diff --git a/doc/modernization.md b/doc/modernization.md
index e5225b4f..b3548e01 100644
--- a/doc/modernization.md
+++ b/doc/modernization.md
@@ -20,7 +20,7 @@ The current deterministic `depends/` baseline is:
 - protobuf 2.6.1 for the existing Qt payment request sources
 - qrencode 4.1.1 for Qt wallet QR code support
 - libevent 2.1.12-stable
-- GMP 6.1.2
+- GMP 6.3.0
 - MiniUPnPc 2.3.3 when UPnP support is enabled
 - ZeroMQ 4.3.5 when enabled