diff --git a/.gitignore b/.gitignore
index 880cd5d..bcb3fab 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 zig-out
 .zig-cache
+zig-pkg
\ No newline at end of file
diff --git a/build.zig b/build.zig
index d32d981..931eeb3 100644
--- a/build.zig
+++ b/build.zig
@@ -169,4 +169,5 @@ const srcs: []const []const u8 = &.{
     "ecdsa.c",
     "nist_kw.c",
     "pk_ecc.c",
+    "psa_crypto_random.c",
 };
diff --git a/build.zig.zon b/build.zig.zon
index 71b4465..f711cec 100644
--- a/build.zig.zon
+++ b/build.zig.zon
@@ -1,12 +1,12 @@
 .{
     .name = .mbedtls,
     .fingerprint = 0x841b00c247548313,
-    .version = "3.6.4",
+    .version = "3.6.6",
     .minimum_zig_version = "0.15.1",
     .dependencies = .{
         .mbedtls = .{
-            .url = "git+https://github.com/Mbed-TLS/mbedtls.git?ref=v3.6.4#c765c831e5c2a0971410692f92f7a81d6ec65ec2",
-            .hash = "N-V-__8AADE9jALWhPS2ykOLbf8gUmr9r-SBwyzzpccbtBAv",
+            .url = "git+https://github.com/Mbed-TLS/mbedtls.git?ref=v3.6.6#0bebf8b8c7f07abe3571ded48a11aa907a1ffb20",
+            .hash = "N-V-__8AAI1FmQLj92go7nR7_J6kwr-7uYyuitngGqydvWkd",
         },
     },
     .paths = .{