diff --git a/.github/workflows/e2e-test.yml b/.github/workflows/e2e-test.yml
index fb295246..62cff3b1 100644
--- a/.github/workflows/e2e-test.yml
+++ b/.github/workflows/e2e-test.yml
@@ -122,7 +122,7 @@ jobs:
     needs: zig-build-release
 
     env:
-      MAX_MEMORY: 27000
+      MAX_MEMORY: 28000
       MAX_AVG_DURATION: 23
       LIGHTPANDA_DISABLE_TELEMETRY: true
 
diff --git a/.gitmodules b/.gitmodules
index 717d079b..b836938c 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -22,9 +22,6 @@
 [submodule "vendor/nghttp2"]
 	path = vendor/nghttp2
 	url = https://github.com/nghttp2/nghttp2.git
-[submodule "vendor/mbedtls"]
-	path = vendor/mbedtls
-	url = https://github.com/Mbed-TLS/mbedtls.git
 [submodule "vendor/zlib"]
 	path = vendor/zlib
 	url = https://github.com/madler/zlib.git
diff --git a/build.zig b/build.zig
index 22ebb542..e206b9eb 100644
--- a/build.zig
+++ b/build.zig
@@ -374,14 +374,27 @@ fn addDependencies(b: *Build, mod: *Build.Module, opts: *Build.Step.Options) !vo
             mod.addCMacro("STDC_HEADERS", "1");
             mod.addCMacro("TIME_WITH_SYS_TIME", "1");
             mod.addCMacro("USE_NGHTTP2", "1");
-            mod.addCMacro("USE_MBEDTLS", "1");
+            mod.addCMacro("USE_OPENSSL", "1");
+            mod.addCMacro("OPENSSL_IS_BORINGSSL", "1");
             mod.addCMacro("USE_THREADS_POSIX", "1");
             mod.addCMacro("USE_UNIX_SOCKETS", "1");
         }
 
         try buildZlib(b, mod);
         try buildBrotli(b, mod);
-        try buildMbedtls(b, mod);
+        const boringssl_dep = b.dependency("boringssl-zig", .{
+            .target = target,
+            .optimize = mod.optimize.?,
+            .force_pic = true,
+        });
+
+        const ssl = boringssl_dep.artifact("ssl");
+        ssl.bundle_ubsan_rt = false;
+        const crypto = boringssl_dep.artifact("crypto");
+        crypto.bundle_ubsan_rt = false;
+
+        mod.linkLibrary(ssl);
+        mod.linkLibrary(crypto);
         try buildNghttp2(b, mod);
         try buildCurl(b, mod);
         try buildAda(b, mod);
@@ -842,8 +855,9 @@ fn buildCurl(b: *Build, m: *Build.Module) !void {
             root ++ "lib/vauth/spnego_sspi.c",
             root ++ "lib/vauth/vauth.c",
             root ++ "lib/vtls/cipher_suite.c",
-            root ++ "lib/vtls/mbedtls.c",
-            root ++ "lib/vtls/mbedtls_threadlock.c",
+            root ++ "lib/vtls/openssl.c",
+            root ++ "lib/vtls/hostcheck.c",
+            root ++ "lib/vtls/keylog.c",
             root ++ "lib/vtls/vtls.c",
             root ++ "lib/vtls/vtls_scache.c",
             root ++ "lib/vtls/x509asn1.c",
diff --git a/build.zig.zon b/build.zig.zon
index 736c94ec..02b217df 100644
--- a/build.zig.zon
+++ b/build.zig.zon
@@ -13,5 +13,9 @@
             .url = "https://github.com/ada-url/ada/releases/download/v3.3.0/singleheader.zip",
             .hash = "N-V-__8AAPmhFAAw64ALjlzd5YMtzpSrmZ6KymsT84BKfB4s",
         },
+        .@"boringssl-zig" = .{
+            .url = "git+https://github.com/Syndica/boringssl-zig.git#c53df00d06b02b755ad88bbf4d1202ed9687b096",
+            .hash = "boringssl-0.1.0-VtJeWehMAAA4RNnwRnzEvKcS9rjsR1QVRw1uJrwXxmVK",
+        },
     },
 }
diff --git a/vendor/mbedtls b/vendor/mbedtls
deleted file mode 160000
index c765c831..00000000
--- a/vendor/mbedtls
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit c765c831e5c2a0971410692f92f7a81d6ec65ec2