diff --git a/pyproject.toml b/pyproject.toml
index 5d555aa..98bb405 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "pricehist"
-version = "1.4.12"
+version = "1.4.11"
 description = "Fetch and format historical price data"
 authors = ["Chris Berkhout <chris@chrisberkhout.com>"]
 license = "MIT"
diff --git a/src/pricehist/__init__.py b/src/pricehist/__init__.py
index 2736991..e42b3cf 100644
--- a/src/pricehist/__init__.py
+++ b/src/pricehist/__init__.py
@@ -1 +1 @@
-__version__ = "1.4.12"
+__version__ = "1.4.11"
diff --git a/src/pricehist/sources/yahoo.py b/src/pricehist/sources/yahoo.py
index 25d92fe..169bf71 100644
--- a/src/pricehist/sources/yahoo.py
+++ b/src/pricehist/sources/yahoo.py
@@ -82,14 +82,18 @@ class Yahoo(BaseSource):
         prices = [
             Price(date, amount)
             for i in range(len(timestamps))
-            if (date := self._ts_to_date(timestamps[i] + offset)) <= series.end
+            if (date := self._date_from_ts(timestamps[i], offset)) <= series.end
             if (amount := self._amount(amounts, series.type, i)) is not None
         ]
 
         return dataclasses.replace(series, quote=quote, prices=prices)
 
-    def _ts_to_date(self, ts) -> str:
-        return datetime.fromtimestamp(ts, tz=timezone.utc).date().isoformat()
+    def _date_from_ts(self, ts, offset) -> str:
+        return (
+            datetime.fromtimestamp(ts - offset)
+            .replace(tzinfo=timezone.utc)
+            .strftime("%Y-%m-%d")
+        )
 
     def _amount(self, amounts, type, i):
         if type == "mid" and amounts["high"] != "null" and amounts["low"] != "null":
diff --git a/tests/live.sh b/tests/live.sh
index 157cdad..cb2dbeb 100755
--- a/tests/live.sh
+++ b/tests/live.sh
@@ -75,10 +75,10 @@ name="Alpha Vantage physical currency"
 cmd="pricehist fetch alphavantage AUD/EUR -s 2021-01-11 -e 2021-01-14"
 read -r -d '' expected <<END
 date,base,quote,amount,source,type
-2021-01-11,AUD,EUR,0.63374,alphavantage,close
-2021-01-12,AUD,EUR,0.63684,alphavantage,close
-2021-01-13,AUD,EUR,0.63686,alphavantage,close
-2021-01-14,AUD,EUR,0.63984,alphavantage,close
+2021-01-11,AUD,EUR,0.63318,alphavantage,close
+2021-01-12,AUD,EUR,0.63664,alphavantage,close
+2021-01-13,AUD,EUR,0.63585,alphavantage,close
+2021-01-14,AUD,EUR,0.63960,alphavantage,close
 END
 run_test "$name" "$cmd" "$expected"
 
diff --git a/tests/pricehist/sources/test_yahoo/inrx-with-null.json b/tests/pricehist/sources/test_yahoo/inrx-with-null.json
deleted file mode 100644
index 5ae762e..0000000
--- a/tests/pricehist/sources/test_yahoo/inrx-with-null.json
+++ /dev/null
@@ -1,119 +0,0 @@
-{
-  "chart": {
-    "result": [
-      {
-        "meta": {
-          "currency": "INR",
-          "symbol": "INR=X",
-          "exchangeName": "CCY",
-          "fullExchangeName": "CCY",
-          "instrumentType": "CURRENCY",
-          "firstTradeDate": 1070236800,
-          "regularMarketTime": 1726284616,
-          "hasPrePostMarketData": false,
-          "gmtoffset": 3600,
-          "timezone": "BST",
-          "exchangeTimezoneName": "Europe/London",
-          "regularMarketPrice": 83.89,
-          "fiftyTwoWeekHigh": 83.89,
-          "fiftyTwoWeekLow": 83.89,
-          "regularMarketDayHigh": 83.89,
-          "regularMarketDayLow": 83.89,
-          "regularMarketVolume": 0,
-          "longName": "USD/INR",
-          "shortName": "USD/INR",
-          "chartPreviousClose": 64.6117,
-          "priceHint": 4,
-          "currentTradingPeriod": {
-            "pre": {
-              "timezone": "BST",
-              "start": 1726182000,
-              "end": 1726182000,
-              "gmtoffset": 3600
-            },
-            "regular": {
-              "timezone": "BST",
-              "start": 1726182000,
-              "end": 1726268340,
-              "gmtoffset": 3600
-            },
-            "post": {
-              "timezone": "BST",
-              "start": 1726268340,
-              "end": 1726268340,
-              "gmtoffset": 3600
-            }
-          },
-          "dataGranularity": "1d",
-          "range": "",
-          "validRanges": [
-            "1d",
-            "5d",
-            "1mo",
-            "3mo",
-            "6mo",
-            "1y",
-            "2y",
-            "5y",
-            "10y",
-            "ytd",
-            "max"
-          ]
-        },
-        "timestamp": [
-          1499641200,
-          1499727600,
-          1499814000,
-          1499900400
-        ],
-        "indicators": {
-          "quote": [
-            {
-              "open": [
-                64.6155014038086,
-                null,
-                64.55549621582031,
-                64.46800231933594
-              ],
-              "volume": [
-                0,
-                null,
-                0,
-                0
-              ],
-              "low": [
-                64.41000366210938,
-                null,
-                64.3499984741211,
-                64.33999633789062
-              ],
-              "close": [
-                64.61170196533203,
-                null,
-                64.52559661865234,
-                64.36499786376953
-              ],
-              "high": [
-                64.6155014038086,
-                null,
-                64.56999969482422,
-                64.48419952392578
-              ]
-            }
-          ],
-          "adjclose": [
-            {
-              "adjclose": [
-                64.61170196533203,
-                null,
-                64.52559661865234,
-                64.36499786376953
-              ]
-            }
-          ]
-        }
-      }
-    ],
-    "error": null
-  }
-}