diff --git a/SalishSeaTools/.coveragerc b/SalishSeaTools/.coveragerc
deleted file mode 100644
index 0b3142f2..00000000
--- a/SalishSeaTools/.coveragerc
+++ /dev/null
@@ -1,8 +0,0 @@
-[run]
-branch = True
-source =
-    salishsea_tools
-    tests
-
-[report]
-show_missing = True
diff --git a/SalishSeaTools/pyproject.toml b/SalishSeaTools/pyproject.toml
index 6bab6618..dbed4d5d 100644
--- a/SalishSeaTools/pyproject.toml
+++ b/SalishSeaTools/pyproject.toml
@@ -63,5 +63,12 @@ dependencies = [
 "Source Code" = "https://github.com/SalishSeaCast/tools/tree/main/SalishSeaTools"
 
 
+[tool.coverage.run]
+branch = true
+source = ["salishsea_tools", "tests"]
+
+[tool.coverage.report]
+show_missing = true
+
 [tool.setuptools.packages.find]
 where = ["."]