diff --git a/README.rst b/README.rst
index 4606de6..205e239 100644
--- a/README.rst
+++ b/README.rst
@@ -216,6 +216,7 @@ Changelog
 3.2.0
 ~~~~~
 * Relax constraint on jellyfish dependency
+* Add the 2020 TIGER URLs to shapefile_urls()
 
 
 3.1.1
diff --git a/us/states.py b/us/states.py
index 1e67ffc..bc1e15c 100644
--- a/us/states.py
+++ b/us/states.py
@@ -49,16 +49,21 @@ def shapefile_urls(self) -> Optional[Dict[str, str]]:
         if not fips:
             return None
 
-        base = "https://www2.census.gov/geo/tiger/TIGER2010/"
+        base = "https://www2.census.gov/geo/tiger/TIGER2020/"
         urls = {
-            "tract": urljoin(base, f"TRACT/2010/tl_2010_{fips}_tract10.zip"),
-            "cd": urljoin(base, f"CD/111/tl_2010_{fips}_cd111.zip"),
-            "county": urljoin(base, f"COUNTY/2010/tl_2010_{fips}_county10.zip"),
-            "state": urljoin(base, f"STATE/2010/tl_2010_{fips}_state10.zip"),
-            "zcta": urljoin(base, f"ZCTA5/2010/tl_2010_{fips}_zcta510.zip"),
-            "block": urljoin(base, f"TABBLOCK/2010/tl_2010_{fips}_tabblock10.zip"),
-            "blockgroup": urljoin(base, f"BG/2010/tl_2010_{fips}_bg10.zip"),
+            "tract": urljoin(base, f"TRACT/tl_2020_{fips}_tract.zip"),
+            "block": urljoin(base, f"TABBLOCK/tl_2020_{fips}_tabblock10.zip"),
+            "blockgroup": urljoin(base, f"BG/tl_2020_{fips}_bg.zip"),
+            "cd": urljoin(base, f"CD/CD118/tl_2020_{fips}_cd118.zip"),
+            "county": urljoin(base, "COUNTY/tl_2020_us_county.zip"),
+            "state": urljoin(base, "STATE/tl_2020_us_state.zip"),
+            "zcta": urljoin(base, "ZCTA5/tl_2020_us_zcta510.zip"),
         }
+        # unicameral legislatures don't have a lower chamber
+        if self.abbr not in ["DC", "NE", "AS", "GU", "MP", "VI"]:
+            urls["lowerchamber"] = urljoin(base, f"SLDL/2022/tl_2020_{fips}_sldl.zip")
+        if self.abbr not in ["AS", "GU", "MP", "VI"]:
+            urls["upperchamber"] = urljoin(base, f"SLDU/tl_2020_{fips}_sldu.zip")
 
         return urls
 
diff --git a/us/tests/test_us.py b/us/tests/test_us.py
index 02a8c76..6a892a9 100644
--- a/us/tests/test_us.py
+++ b/us/tests/test_us.py
@@ -124,14 +124,14 @@ def test_dc():
 # shapefiles
 
 
-@pytest.mark.skip
-def test_head():
+shapefile_urls = [url for state in us.STATES_AND_TERRITORIES for url in state.shapefile_urls().values()]
+
+@pytest.mark.parametrize("url", shapefile_urls)
+def test_shapefiles_head(url):
     import requests
 
-    for state in us.STATES_AND_TERRITORIES:
-        for url in state.shapefile_urls().values():
-            resp = requests.head(url)
-            assert resp.status_code == 200
+    resp = requests.head(url)
+    assert resp.status_code == 200
 
 
 # counts