diff --git a/deps.sh b/deps.sh
index 1cd49bf..ffc5298 100644
--- a/deps.sh
+++ b/deps.sh
@@ -6,9 +6,9 @@ libfuse_MD5=5f7c1062def710d8b60343524a18cc82
 libfuse_DIR=libfuse-fuse-${libfuse_VERSION}
 libfuse_TYPE=meson
 
-lws_VERSION=3.2.0
+lws_VERSION=4.0.13
 lws_URL=https://github.com/warmcat/libwebsockets/archive/v${lws_VERSION}.tar.gz
-lws_MD5=1d06f5602604e67e6f50cef9857c6b0c
+lws_MD5=6403448e26d302501969afb0e128143b
 lws_DIR=libwebsockets-${lws_VERSION}
 lws_TYPE=cmake
 
diff --git a/doc/build.md b/doc/build.md
index 8f4fc45..baf39ef 100644
--- a/doc/build.md
+++ b/doc/build.md
@@ -12,7 +12,7 @@ To install dependecies, see below.
 - [webfuse](https://github.com/falk-werner/webfuse)
   - [libfuse](https://github.com/libfuse/libfuse/)
   - [libwebsockets](https://libwebsockets.org/)
-  - [jansson](https://github.com/akheron/jansson)
+- [jansson](https://github.com/akheron/jansson)
 - [openssl](https://www.openssl.org/)
 - [libconfig](https://hyperrealm.github.io/libconfig/)
 - [linux-pam](http://www.linux-pam.org/)
@@ -37,9 +37,9 @@ To install libfuse, meson is needed. Please refer to [meson quick guide](https:/
 
 ### libwebsockets
 
-    wget https://github.com/warmcat/libwebsockets/archive/v3.2.0.tar.gz -O libwebsockets.tar.gz
+    wget https://github.com/warmcat/libwebsockets/archive/v4.0.13.tar.gz -O libwebsockets.tar.gz
     tar -xf libwebsockets.tar.gz
-    cd libwebsockets-3.2.0
+    cd libwebsockets-4.0.13
     mkdir .build
     cd .build
     cmake ..
diff --git a/meson.build b/meson.build
index 74595f4..8dc0a25 100644
--- a/meson.build
+++ b/meson.build
@@ -8,7 +8,7 @@ openssl_dep = dependency('openssl', version: '>=1.1.1')
 libconfig_dep = dependency('libconfig', version: '>=1.5')
 pam_dep = c_compiler.find_library('pam')
 
-libwebsockets_dep = dependency('libwebsockets', version: '>=3.0.0')
+libwebsockets_dep = dependency('libwebsockets', version: '>=4.0.0')
 jansson_dep = dependency('jansson', version: '>=2.11')
 libfuse_dep = dependency('fuse3', version: '>=3.8.0')