diff --git a/micropython/uaiohttpclient/manifest.py b/micropython/uaiohttpclient/manifest.py
index 8b35e0a70..61b13c24d 100644
--- a/micropython/uaiohttpclient/manifest.py
+++ b/micropython/uaiohttpclient/manifest.py
@@ -1,4 +1,4 @@
-metadata(description="HTTP client module for MicroPython asyncio module", version="0.5.2")
+metadata(description="HTTP client module for MicroPython asyncio module", version="0.5.3")
 
 # Originally written by Paul Sokolovsky.
 
diff --git a/micropython/uaiohttpclient/test_uaiohttpclient.py b/micropython/uaiohttpclient/test_uaiohttpclient.py
new file mode 100644
index 000000000..bd98bb93d
--- /dev/null
+++ b/micropython/uaiohttpclient/test_uaiohttpclient.py
@@ -0,0 +1,108 @@
+import io
+import sys
+
+_MP_STREAM_POLL = 3
+_SERVER_RESPONSE_200_OK = b"HTTP/1.1 200 OK\r\n\r\n"
+
+
+class Socket(io.IOBase):
+    def __init__(self, read_data):
+        self._write_buffer = io.BytesIO()
+        self._read_buffer = io.BytesIO(read_data)
+
+    def ioctl(self, cmd, arg):
+        if cmd == _MP_STREAM_POLL:
+            return arg
+        return -1
+
+    def setblocking(self, value):
+        pass
+
+    def connect(self, address):
+        pass
+
+    def write(self, buf):
+        self._write_buffer.write(buf)
+        return len(buf)
+
+    def readline(self):
+        return self._read_buffer.readline()
+
+    def read(self, size=-1):
+        return self._read_buffer.read(size)
+
+    def readinto(self, buf):
+        return self._read_buffer.readinto(buf)
+
+    def close(self):
+        pass
+
+
+class socket:
+    AF_INET = 2
+    SOCK_STREAM = 1
+    IPPROTO_TCP = 6
+
+    @staticmethod
+    def _set_responses(r):
+        socket._responses = r
+
+    @staticmethod
+    def getaddrinfo(host, port, af=0, type=0, flags=0):
+        return [(socket.AF_INET, socket.SOCK_STREAM, socket.IPPROTO_TCP, "", ("127.0.0.1", 80))]
+
+    def socket(af=AF_INET, type=SOCK_STREAM, proto=IPPROTO_TCP):
+        return Socket(socket._responses.pop(0))
+
+
+# Patch the socket module with a mock one for testing.
+sys.modules["socket"] = socket
+
+# ruff: noqa: E402
+import asyncio
+import uaiohttpclient
+import unittest
+
+
+class Test(unittest.TestCase):
+    async def do_request(self, url):
+        resp = await uaiohttpclient.request("GET", url)
+        body = await resp.read()
+        return resp, body
+
+    def test_request(self):
+        BODY_DATA = b"body"
+        socket._set_responses([_SERVER_RESPONSE_200_OK + BODY_DATA])
+
+        resp, body = asyncio.run(self.do_request("http://example.com"))
+        request_data = resp.content.s._write_buffer.getvalue()
+        self.assertEqual(
+            request_data,
+            b"GET / HTTP/1.0\r\nHost: example.com\r\nConnection: close\r\nUser-Agent: compat\r\n\r\n",
+        )
+        self.assertEqual(resp.status, 200)
+        self.assertEqual(resp.headers, [])
+        self.assertEqual(body, BODY_DATA)
+
+    def test_redirect_absolute(self):
+        BODY_DATA = b"body"
+        socket._set_responses(
+            [
+                b"HTTP/1.1 301 OK\r\nLocation: http://example.com/index\r\n\r\n",
+                _SERVER_RESPONSE_200_OK + BODY_DATA,
+            ]
+        )
+
+        resp, body = asyncio.run(self.do_request("http://example.com"))
+        request_data = resp.content.s._write_buffer.getvalue()
+        self.assertEqual(
+            request_data,
+            b"GET /index HTTP/1.0\r\nHost: example.com\r\nConnection: close\r\nUser-Agent: compat\r\n\r\n",
+        )
+        self.assertEqual(resp.status, 200)
+        self.assertEqual(resp.headers, [])
+        self.assertEqual(body, BODY_DATA)
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/micropython/uaiohttpclient/uaiohttpclient.py b/micropython/uaiohttpclient/uaiohttpclient.py
index 2e782638c..94777a893 100644
--- a/micropython/uaiohttpclient/uaiohttpclient.py
+++ b/micropython/uaiohttpclient/uaiohttpclient.py
@@ -65,7 +65,7 @@ async def request_raw(method, url):
         path,
         host,
     )
-    await writer.awrite(query.encode("latin-1"))
+    await writer.awrite(query.encode("utf8"))
     return reader
 
 
@@ -87,7 +87,7 @@ async def request(method, url):
                 if b"chunked" in line:
                     chunked = True
             elif line.startswith(b"Location:"):
-                url = line.rstrip().split(None, 1)[1].decode("latin-1")
+                url = line.rstrip().split(None, 1)[1].decode("utf8")
 
         if 301 <= status <= 303:
             redir_cnt += 1
diff --git a/tools/ci.sh b/tools/ci.sh
index 4c56fb9c5..2fc6fe90c 100755
--- a/tools/ci.sh
+++ b/tools/ci.sh
@@ -92,6 +92,7 @@ function ci_package_tests_run {
     done
 
     for path in \
+        micropython/uaiohttpclient \
         micropython/ucontextlib \
         python-stdlib/colorsys \
         python-stdlib/contextlib \