diff --git a/.travis.yml b/.travis.yml
index c9513a73..07207f99 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -30,5 +30,5 @@ script:
 after_script:
   - if [ -f .coverage ]; then
       python -m pip install codecov;
-      codecov;
+      codecov --required;
     fi
diff --git a/codecov.yml b/codecov.yml
new file mode 100644
index 00000000..3920f5c1
--- /dev/null
+++ b/codecov.yml
@@ -0,0 +1,8 @@
+coverage:
+    status:
+        patch:
+            default:
+                target: '100'
+        project:
+            default:
+                target: '100'
diff --git a/setup.cfg b/setup.cfg
index feb7f5a7..3077d460 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -16,4 +16,4 @@ line_length = 88
 multi_line_output = 3
 
 [tool:pytest]
-addopts = --cov=httpx --cov=tests --cov-report=term-missing --cov-fail-under=100
+addopts = --cov=httpx --cov=tests --cov-report=term-missing