diff --git a/project.py b/project.py
index f8030b5f..53484614 100644
--- a/project.py
+++ b/project.py
@@ -352,7 +352,7 @@ def build_swift_package(path, swiftc, swift_version, configuration,
     if added_swift_flags is not None:
         for flag in added_swift_flags.split():
             command += ["-Xswiftc", flag]
-    return common.check_execute(command, timeout=3600,
+    return common.check_execute(command, timeout=common.DEFAULT_EXECUTE_TIMEOUT,
                                 sandbox_profile=sandbox_profile,
                                 stdout=stdout, stderr=stderr,
                                 env=env)
@@ -377,7 +377,7 @@ def test_swift_package(path, swiftc, sandbox_profile,
     if (swift_branch not in ['swift-3.0-branch',
                              'swift-3.1-branch']):
         command.insert(2, '--disable-sandbox')
-    return common.check_execute(command, timeout=3600,
+    return common.check_execute(command, timeout=common.DEFAULT_EXECUTE_TIMEOUT,
                                 sandbox_profile=sandbox_profile,
                                 stdout=stdout, stderr=stderr,
                                 env=env)
diff --git a/project_precommit_check b/project_precommit_check
index 5b53b111..c5405522 100755
--- a/project_precommit_check
+++ b/project_precommit_check
@@ -237,7 +237,7 @@ def check(project, swift_branch, swiftc, compatibility_version):
     ]
     common.debug_print("--- Executing build actions ---")
     try:
-        common.check_execute(runner_command, timeout=3600)
+        common.check_execute(runner_command, timeout=common.DEFAULT_EXECUTE_TIMEOUT)
     except common.ExecuteCommandFailure:
         common.debug_print("--- Encountered failures. Check .log files in current directory for details ---")
         return 1
diff --git a/reproduce.py b/reproduce.py
index 1f8220a8..ba309739 100755
--- a/reproduce.py
+++ b/reproduce.py
@@ -112,7 +112,7 @@ def main():
             run_command += ['--skip-clone']
         if args.assertions:
             run_command += ['--assertions']
-        common.check_execute(run_command, timeout=3600)
+        common.check_execute(run_command, timeout=common.DEFAULT_EXECUTE_TIMEOUT)
 
     # Build specified indexed project. Otherwise, build all indexed projects
     runner_command = [