diff --git a/O/open62541/build_tarballs.jl b/O/open62541/build_tarballs.jl
index ee47124107e..6dd1fc004f7 100644
--- a/O/open62541/build_tarballs.jl
+++ b/O/open62541/build_tarballs.jl
@@ -3,17 +3,27 @@
 using BinaryBuilder, Pkg
 
 name = "open62541"
-version = v"1.3.9"
+version = v"1.4.0"
 
 # Collection of sources required to complete build
 sources = [
     GitSource("https://github.com/open62541/open62541.git",
-              "70ff3501ddecd7e7594ebc63e2365994d59e010d")
+              "84347820c8550b5750f2cd581c14ab201611c579"),
+    DirectorySource("./bundled")
 ]
 
 # Bash recipe for building across all platforms
 script = raw"""
+# Necessary for cmake to find openssl on Windows 
+if [[ ${target} == x86_64-*-mingw* ]]; then 
+    export OPENSSL_ROOT_DIR=${prefix}/lib64 
+fi 
+
 cd $WORKSPACE/srcdir/open62541/
+if [[ "${target}" == *-freebsd* ]]; then
+    # https://github.com/open62541/open62541/issues/6414
+    atomic_patch -p1 ../0001-freebsd.patch
+fi
 mkdir build && cd build/
 cmake -DCMAKE_INSTALL_PREFIX=${prefix} \
     -DCMAKE_TOOLCHAIN_FILE=${CMAKE_TARGET_TOOLCHAIN} \
@@ -23,7 +33,7 @@ cmake -DCMAKE_INSTALL_PREFIX=${prefix} \
     -DUA_ENABLE_METHODCALLS=ON \
     -DUA_ENABLE_PARSING=ON \
     -DUA_ENABLE_NODEMANAGEMENT=ON \
-    -DUA_ENABLE_AMALGAMATION=ON \
+    -DUA_ENABLE_ENCRYPTION=OPENSSL \
     -DUA_ENABLE_IMMUTABLE_NODES=ON \
     -DUA_ENABLE_HISTORIZING=ON \
     -DBUILD_SHARED_LIBS=ON \
@@ -44,7 +54,8 @@ products = [
 ]
 
 # Dependencies that must be installed before this package can be built
-dependencies = Dependency[
+dependencies = [
+    Dependency("OpenSSL_jll"; compat="3.0.8")
 ]
 
 # Build the tarballs, and possibly a `build.jl` as well.
diff --git a/O/open62541/bundled/0001-freebsd.patch b/O/open62541/bundled/0001-freebsd.patch
new file mode 100644
index 00000000000..a4dcc9458a2
--- /dev/null
+++ b/O/open62541/bundled/0001-freebsd.patch
@@ -0,0 +1,25 @@
+diff --git a/arch/posix/ua_architecture.h b/arch/posix/ua_architecture.h
+index c42768548..8e6159818 100644
+--- a/arch/posix/ua_architecture.h
++++ b/arch/posix/ua_architecture.h
+@@ -14,6 +14,7 @@
+
+ #include <errno.h>
+ #include <arpa/inet.h>
++#include <netinet/in.h>
+ #include <netinet/tcp.h>
+ #include <netdb.h>
+ #include <sys/ioctl.h>
+diff --git a/include/open62541/config.h.in b/include/open62541/config.h.in
+index 5b20497ed..7758f2ab3 100644
+--- a/include/open62541/config.h.in
++++ b/include/open62541/config.h.in
+@@ -127,7 +127,7 @@
+  * header. */
+ #ifdef UA_ARCHITECTURE_POSIX
+ # if !defined(_XOPEN_SOURCE)
+-#  define _XOPEN_SOURCE 600
++// #  define _XOPEN_SOURCE 600
+ # endif
+ # ifndef _DEFAULT_SOURCE
+ #  define _DEFAULT_SOURCE