diff --git a/.archived/aria2-mingw.dockerfile b/.archived/aria2-mingw.dockerfile
index 4f0f8ec..a034738 100644
--- a/.archived/aria2-mingw.dockerfile
+++ b/.archived/aria2-mingw.dockerfile
@@ -45,7 +45,7 @@ ENV RANLIB  "$HOST-ranlib"
 ENV STRIP   "$HOST-strip"
 
 
-ENV DL_libgmp    "https://gmplib.org/download/gmp/gmp-6.2.1.tar.xz"
+ENV DL_libgmp    "https://ftp.gnu.org/gnu/gmp/gmp-6.3.0.tar.xz"
 ENV DL_zlib      "https://www.zlib.net/zlib-1.2.11.tar.gz"
 ENV DL_libexpat  "https://github.com/libexpat/libexpat/releases/download/R_2_2_10/expat-2.2.10.tar.gz"
 ENV DL_c_ares    "https://c-ares.haxx.se/download/c-ares-1.17.1.tar.gz"
diff --git a/aria2c-windows-i686-wintls.dockerfile b/aria2c-windows-i686-wintls.dockerfile
index f5840b2..eb48d5d 100644
--- a/aria2c-windows-i686-wintls.dockerfile
+++ b/aria2c-windows-i686-wintls.dockerfile
@@ -34,7 +34,7 @@ ENV URL_zlib     "https://www.zlib.net/zlib-1.3.tar.gz"
 ENV URL_sqlite3  "https://www.sqlite.org/2023/sqlite-autoconf-3430100.tar.gz"
 ENV URL_openssl  "https://www.openssl.org/source/openssl-1.1.1w.tar.gz"
 ENV URL_expat    "https://github.com/libexpat/libexpat/releases/download/R_2_5_0/expat-2.5.0.tar.bz2"
-ENV URL_gmp      "https://gmplib.org/download/gmp/gmp-6.3.0.tar.xz"
+ENV URL_gmp      "https://ftp.gnu.org/gnu/gmp/gmp-6.3.0.tar.xz"
 
 ENV DIR_libssh2  "/build/libssh2"
 ENV DIR_c_ares   "/build/c_ares"
diff --git a/aria2c-windows-x86_64-openssl.dockerfile b/aria2c-windows-x86_64-openssl.dockerfile
index d88e8a2..5dbdc85 100644
--- a/aria2c-windows-x86_64-openssl.dockerfile
+++ b/aria2c-windows-x86_64-openssl.dockerfile
@@ -34,7 +34,7 @@ ENV URL_zlib     "https://www.zlib.net/zlib-1.3.tar.gz"
 ENV URL_sqlite3  "https://www.sqlite.org/2023/sqlite-autoconf-3430100.tar.gz"
 ENV URL_openssl  "https://www.openssl.org/source/openssl-1.1.1w.tar.gz"
 ENV URL_expat    "https://github.com/libexpat/libexpat/releases/download/R_2_5_0/expat-2.5.0.tar.bz2"
-ENV URL_gmp      "https://gmplib.org/download/gmp/gmp-6.3.0.tar.xz"
+ENV URL_gmp      "https://ftp.gnu.org/gnu/gmp/gmp-6.3.0.tar.xz"
 
 ENV DIR_libssh2  "/build/libssh2"
 ENV DIR_c_ares   "/build/c_ares"
diff --git a/aria2c-windows-x86_64-wintls.dockerfile b/aria2c-windows-x86_64-wintls.dockerfile
index 330be59..1957495 100644
--- a/aria2c-windows-x86_64-wintls.dockerfile
+++ b/aria2c-windows-x86_64-wintls.dockerfile
@@ -34,7 +34,7 @@ ENV URL_zlib     "https://www.zlib.net/zlib-1.3.tar.gz"
 ENV URL_sqlite3  "https://www.sqlite.org/2023/sqlite-autoconf-3430100.tar.gz"
 ENV URL_openssl  "https://www.openssl.org/source/openssl-1.1.1w.tar.gz"
 ENV URL_expat    "https://github.com/libexpat/libexpat/releases/download/R_2_5_0/expat-2.5.0.tar.bz2"
-ENV URL_gmp      "https://gmplib.org/download/gmp/gmp-6.3.0.tar.xz"
+ENV URL_gmp      "https://ftp.gnu.org/gnu/gmp/gmp-6.3.0.tar.xz"
 
 ENV DIR_libssh2  "/build/libssh2"
 ENV DIR_c_ares   "/build/c_ares"