diff --git a/docs/changelog.md b/docs/changelog.md
index a2569c2..647e86e 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## v0.3.5
+
+- Allow data uri containing a json to omit "utf-8" encoding
+
 ## v0.3.4
 
 - Fix Nouns parser to make sure image uri is properly base64-encoded svg
diff --git a/docs/index.md b/docs/index.md
index 57befb7..3e14c01 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -1,6 +1,6 @@
 # Getting Started
 
-Documentation for version: **v0.3.4**
+Documentation for version: **v0.3.5**
 
 ## Overview
 
diff --git a/offchain/metadata/adapters/data_uri.py b/offchain/metadata/adapters/data_uri.py
index 094f928..d4c2043 100644
--- a/offchain/metadata/adapters/data_uri.py
+++ b/offchain/metadata/adapters/data_uri.py
@@ -18,7 +18,7 @@ def decode_data_url(data_url):  # type: ignore[no-untyped-def]
         decoded_data = base64.b64decode(data)
         decoded_text = decoded_data.decode("utf-8")
         return decoded_text
-    elif "json;utf8" in data_parts[0]:
+    elif "json;utf8" in data_parts[0] or "json" in data_parts[0]:
         decoded_data = urlopen(data_url).read()
         decoded_text = json.dumps(json.loads(decoded_data))
         return decoded_text
diff --git a/pyproject.toml b/pyproject.toml
index 7e7acce..2315ce5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "offchain"
-version = "0.3.4"
+version = "0.3.5"
 description = "Open source metadata processing framework"
 authors = ["Zora eng <eng@zora.co>"]
 readme = "README.md"
diff --git a/tests/metadata/adapters/test_data_adapter.py b/tests/metadata/adapters/test_data_adapter.py
index 25cacdb..2e046d2 100644
--- a/tests/metadata/adapters/test_data_adapter.py
+++ b/tests/metadata/adapters/test_data_adapter.py
@@ -29,7 +29,7 @@ async def test_gen_head(self, httpx_mock: HTTPXMock):
     @pytest.mark.asyncio
     async def test_gen_head_not_base64(self, httpx_mock: HTTPXMock):
         adapter = DataURIAdapter()
-        data_url = "data:application/json;utf8,{\"name\":\"here for now\",\"description\":\"sometimes i don't know how to feel when i'm away.\", \"image\": \"data:image/svg+xml;base64,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\"}"  # noqa
+        data_url = 'data:application/json;utf8,{"name":"here for now","description":"sometimes i don\'t know how to feel when i\'m away.", "image": "data:image/svg+xml;base64,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"}'  # noqa
         async with httpx.AsyncClient() as client:
             result = await adapter.gen_head(url=data_url, sess=client)
 
@@ -45,6 +45,26 @@ async def test_gen_head_not_base64(self, httpx_mock: HTTPXMock):
         outgoing_request = httpx_mock.get_requests()
         assert not outgoing_request
 
+    @pytest.mark.asyncio
+    async def test_gen_head_json_unspecified_encoding(self, httpx_mock: HTTPXMock):
+        adapter = DataURIAdapter()
+        json_str = '{"name":"here for now","description":"sometimes i don\'t know how to feel when i\'m away.", "image": "data:image/svg+xml;base64,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"}'  # noqa
+        data_url = f"data:application/json,{json_str}"
+        async with httpx.AsyncClient() as client:
+            result = await adapter.gen_head(url=data_url, sess=client)
+
+        expected = httpx.Response(
+            status_code=200,
+            headers={"content-type": "application/json", "content-length": "2600"},
+            request=httpx.Request(method="HEAD", url=data_url),
+        )
+        assert result.status_code == 200
+        assert result.request.method == "HEAD"
+        assert result.headers == expected.headers
+        # no real request was made
+        outgoing_request = httpx_mock.get_requests()
+        assert not outgoing_request
+
     @pytest.mark.asyncio
     async def test_gen_send(self, httpx_mock: HTTPXMock):
         adapter = DataURIAdapter()
@@ -61,7 +81,7 @@ async def test_gen_send(self, httpx_mock: HTTPXMock):
     @pytest.mark.asyncio
     async def test_gen_send_not_base64(self, httpx_mock: HTTPXMock):
         adapter = DataURIAdapter()
-        json_str = "{\"name\":\"here for now\",\"description\":\"sometimes i don't know how to feel when i'm away.\", \"image\": \"data:image/svg+xml;base64,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\"}"  # noqa
+        json_str = '{"name":"here for now","description":"sometimes i don\'t know how to feel when i\'m away.", "image": "data:image/svg+xml;base64,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"}'  # noqa
         data_url = f"data:application/json;utf8,{json_str}"
         async with httpx.AsyncClient() as client:
             result = await adapter.gen_send(url=data_url, sess=client)
@@ -72,3 +92,18 @@ async def test_gen_send_not_base64(self, httpx_mock: HTTPXMock):
         # no real request was made
         outgoing_request = httpx_mock.get_requests()
         assert not outgoing_request
+
+    @pytest.mark.asyncio
+    async def test_gen_send_json_unspecified_encoding(self, httpx_mock: HTTPXMock):
+        adapter = DataURIAdapter()
+        json_str = '{"name":"here for now","description":"sometimes i don\'t know how to feel when i\'m away.", "image": "data:image/svg+xml;base64,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"}'  # noqa
+        data_url = f"data:application/json,{json_str}"
+        async with httpx.AsyncClient() as client:
+            result = await adapter.gen_send(url=data_url, sess=client)
+
+        assert result.status_code == 200
+        assert result.request.method == "GET"
+        assert json.loads(result.text) == json.loads(json_str)
+        # no real request was made
+        outgoing_request = httpx_mock.get_requests()
+        assert not outgoing_request