diff --git a/nix/tests.nix b/nix/tests.nix
index 475cb45fb..35fe700de 100644
--- a/nix/tests.nix
+++ b/nix/tests.nix
@@ -38,7 +38,7 @@ in {
     doCheck = true;
     buildInputs = [sonata-simulator pythonEnv];
     checkPhase = ''
-      python ${../util/test_runner.py} -t 60 sim \
+      python ${../util/test_runner.py} -t 120 sim \
           --elf-file ${sonata-system-software}/bin/test_runner
       echo "Test runner complete!"
       python ${../util/test_runner.py} -t 600 sim \