diff --git a/tests/isolation_provider/base.py b/tests/isolation_provider/base.py
index fc73cb93f..1dd459b90 100644
--- a/tests/isolation_provider/base.py
+++ b/tests/isolation_provider/base.py
@@ -20,7 +20,7 @@
     uncommon_text,
 )
 
-TIMEOUT_STARTUP = 15  # Timeout in seconds until the conversion sandbox starts.
+TIMEOUT_STARTUP = 60  # Timeout in seconds until the conversion sandbox starts.
 
 
 @pytest.mark.skipif(