diff --git a/tests/cases/markdownlint-cli2/failure/test.toml b/tests/cases/markdownlint-cli2/failure/test.toml
index 11adb99..5f14b96 100644
--- a/tests/cases/markdownlint-cli2/failure/test.toml
+++ b/tests/cases/markdownlint-cli2/failure/test.toml
@@ -3,7 +3,7 @@ args = "run --full markdownlint-cli2"
 exit = 1
 stderr = '''
 [markdownlint-cli2]
-markdownlint-cli2 v0.17.2 (markdownlint v0.37.4)
+markdownlint-cli2 <VERSION>
 Finding: <REPO>/README.md
 Linting: 1 file(s)
 Summary: 1 error(s)
diff --git a/tests/e2e.rs b/tests/e2e.rs
index 7eeba5e..107013c 100644
--- a/tests/e2e.rs
+++ b/tests/e2e.rs
@@ -271,12 +271,12 @@ fn run_case(case: &Path, name: &str, update: bool) {
     let repo_canonical_str = canonical_repo_path(repo.path());
     let normalize =
         |s: String| -> String { normalize_output(s, repo_str.as_ref(), &repo_canonical_str) };
-    let stderr = normalize_timing(&strip_ansi(&normalize(
+    let stderr = normalize_tool_versions(&normalize_timing(&strip_ansi(&normalize(
         String::from_utf8_lossy(&out.stderr).into_owned(),
-    )));
-    let stdout = normalize_timing(&strip_ansi(&normalize(
+    ))));
+    let stdout = normalize_tool_versions(&normalize_timing(&strip_ansi(&normalize(
         String::from_utf8_lossy(&out.stdout).into_owned(),
-    )));
+    ))));
 
     if update {
         write_test_toml(
@@ -391,6 +391,17 @@ fn normalize_timing(s: &str) -> String {
         .into_owned()
 }
 
+/// Replaces tool version banners with a stable `<VERSION>` placeholder so
+/// snapshots don't need updating on every dependency bump.
+fn normalize_tool_versions(s: &str) -> String {
+    use regex::Regex;
+    // markdownlint-cli2 vX.Y.Z (markdownlint vA.B.C)
+    let re =
+        Regex::new(r"markdownlint-cli2 v\d+\.\d+\.\d+ \(markdownlint v\d+\.\d+\.\d+\)").unwrap();
+    re.replace_all(s, "markdownlint-cli2 <VERSION>")
+        .into_owned()
+}
+
 /// Strips ANSI/VT escape sequences (colour codes, character-set switches, etc.).
 /// TOML strings cannot contain raw control characters, so these must be removed.
 fn strip_ansi(s: &str) -> String {