diff --git a/scripts/_version.py b/scripts/_version.py
index 3fc79d8..6a60822 100644
--- a/scripts/_version.py
+++ b/scripts/_version.py
@@ -10,4 +10,4 @@
 tests/test_action_version.py fails if the two consumers ever disagree again.
 """
 
-ACTION_VERSION = "v1.0.3"
+ACTION_VERSION = "v1.0.4"
diff --git a/scripts/write_firstrun_report.py b/scripts/write_firstrun_report.py
index 0f73f9a..144df76 100644
--- a/scripts/write_firstrun_report.py
+++ b/scripts/write_firstrun_report.py
@@ -12,7 +12,10 @@
 import sys
 from pathlib import Path
 
-ACTION_VERSION = "v1.0.0-rc1"
+try:
+    from _version import ACTION_VERSION
+except ImportError:  # invoked as a module rather than a script
+    from scripts._version import ACTION_VERSION
 
 
 def _find_file(root: Path, name: str) -> Path | None:
diff --git a/tests/test_action_version.py b/tests/test_action_version.py
index 917048c..325f644 100644
--- a/tests/test_action_version.py
+++ b/tests/test_action_version.py
@@ -41,6 +41,7 @@ def test_both_report_writers_agree() -> None:
 
     assert load("compare_runs").ACTION_VERSION == expected
     assert load("detect_test_set_drift").ACTION_VERSION == expected
+    assert load("write_firstrun_report").ACTION_VERSION == expected
 
 
 def test_version_matches_the_newest_release_tag() -> None:
@@ -70,6 +71,6 @@ def test_version_matches_the_newest_release_tag() -> None:
 
 def test_the_stamp_actually_reaches_a_gate_report() -> None:
     """A constant nothing writes out would pass every check above and still be useless."""
-    source = (ROOT / "scripts" / "compare_runs.py").read_text(encoding="utf-8")
-
-    assert '"action_version": ACTION_VERSION' in source
+    for name in ("compare_runs", "write_firstrun_report"):
+        source = (ROOT / "scripts" / f"{name}.py").read_text(encoding="utf-8")
+        assert '"action_version": ACTION_VERSION' in source, name