diff --git a/.github/scripts/integration-test-matrix.js b/.github/scripts/integration-test-matrix.js
index 5f6d93f..2a0e3ca 100644
--- a/.github/scripts/integration-test-matrix.js
+++ b/.github/scripts/integration-test-matrix.js
@@ -39,24 +39,6 @@ module.exports = ({ context }) => {
               "database-image": adapterImages[adapter],
               "python-version": pythonVersion,
             });
-
-            if (labels.includes("test windows") || testAllLabel) {
-              include.push({
-                os: "windows-latest",
-                adapter,
-                "database-image": adapterImages[adapter],
-                "python-version": pythonVersion,
-              });
-            }
-
-            if (labels.includes("test macos") || testAllLabel) {
-              include.push({
-                os: "macos-latest",
-                adapter,
-                "database-image": adapterImages[adapter],
-                "python-version": pythonVersion,
-              });
-            }
           }
         }
       }
@@ -84,19 +66,6 @@ module.exports = ({ context }) => {
     }
   }
 
-  // additionally include runs for all adapters, on macos and windows,
-  // but only for the default python version
-  for (const adapter of supportedAdapters) {
-    for (const operatingSystem of ["windows-latest", "macos-latest"]) {
-      include.push({
-        os: operatingSystem,
-        adapter: adapter,
-        "database-image": adapterImages[adapter],
-        "python-version": defaultPythonVersion,
-      });
-    }
-  }
-
   console.log("matrix", { include });
 
   return {