diff --git a/crates/uv-test/src/lib.rs b/crates/uv-test/src/lib.rs
index cf370d921..46f55c60d 100755
--- a/crates/uv-test/src/lib.rs
+++ b/crates/uv-test/src/lib.rs
@@ -1288,7 +1288,7 @@ impl TestContext {
         command.arg("format");
         self.add_shared_options(&mut command, false);
         // Override to a more recent date for ruff version resolution
-        command.env(EnvVars::UV_EXCLUDE_NEWER, "2026-03-01T00:00:00Z");
+        command.env(EnvVars::UV_EXCLUDE_NEWER, "2026-02-15T00:00:00Z");
         command
     }
 
diff --git a/crates/uv/tests/it/format.rs b/crates/uv/tests/it/format.rs
index 5d65dd5e2..d72e5d049 100644
--- a/crates/uv/tests/it/format.rs
+++ b/crates/uv/tests/it/format.rs
@@ -517,7 +517,7 @@ fn format_version_constraints() -> Result<()> {
 
     ----- stderr -----
     warning: `uv format` is experimental and may change without warning. Pass `--preview-features format` to disable this warning.
-    ruff 0.15.0
+    ruff 0.15.1
     ");
 
     Ok(())
@@ -550,7 +550,7 @@ fn format_version_latest() -> Result<()> {
 
     ----- stderr -----
     warning: `uv format` is experimental and may change without warning. Pass `--preview-features format` to disable this warning.
-    ruff 0.15.0
+    ruff 0.15.1
     ");
 
     Ok(())