diff --git a/ext/_ext.cmake b/ext/_ext.cmake
index 530c6241..17cbbb51 100644
--- a/ext/_ext.cmake
+++ b/ext/_ext.cmake
@@ -37,6 +37,7 @@ add_subdirectory("${CMAKE_CURRENT_LIST_DIR}/ice")
 
 # miniz
 if(NOT TARGET miniz)
+    set(BUILD_NO_STDIO ON CACHE INTERNAL "" FORCE)
     add_subdirectory("${CMAKE_CURRENT_LIST_DIR}/miniz")
 endif()
 
@@ -50,7 +51,7 @@ if((SOURCEPP_USE_VPKPP OR SOURCEPP_USE_VTFPP) AND NOT TARGET MINIZIP::minizip)
         set(MZ_ZSTD         ON  CACHE INTERNAL "" FORCE)
     endif()
     set(MZ_FETCH_LIBS       ON  CACHE INTERNAL "" FORCE)
-    set(MZ_FORCE_FETCH_LIBS ON  CACHE INTERNAL "" FORCE)
+    set(MZ_FORCE_FETCH_LIBS OFF CACHE INTERNAL "")
     set(MZ_PKCRYPT          OFF CACHE INTERNAL "")
     set(MZ_WZAES            OFF CACHE INTERNAL "")
     set(MZ_OPENSSL          OFF CACHE INTERNAL "")
diff --git a/ext/miniz b/ext/miniz
index 35528ad7..2fa13ca8 160000
--- a/ext/miniz
+++ b/ext/miniz
@@ -1 +1 @@
-Subproject commit 35528ad769143b9ed38a95a22d460b963e39f278
+Subproject commit 2fa13ca8a3cf196345001c9fe17bf42ee32c00f9
diff --git a/ext/update.bat b/ext/update.bat
new file mode 100644
index 00000000..eaef1c9c
--- /dev/null
+++ b/ext/update.bat
@@ -0,0 +1,24 @@
+cd bufferstream
+git checkout main
+git pull
+cd ..
+
+cd cryptopp
+git checkout master
+git pull
+cd ..
+
+cd hat-trie
+git checkout master
+git pull
+cd ..
+
+cd miniz
+git checkout master
+git pull
+cd ..
+
+cd minizip-ng
+git checkout master
+git pull
+cd ..
diff --git a/ext/update.sh b/ext/update.sh
new file mode 100644
index 00000000..24cc90db
--- /dev/null
+++ b/ext/update.sh
@@ -0,0 +1,25 @@
+(
+  cd bufferstream || exit
+  git checkout main
+  git pull
+)
+(
+  cd cryptopp || exit
+  git checkout master
+  git pull
+)
+(
+  cd hat-trie || exit
+  git checkout master
+  git pull
+)
+(
+  cd miniz || exit
+  git checkout master
+  git pull
+)
+(
+  cd minizip-ng || exit
+  git checkout master
+  git pull
+)