diff --git a/.gitignore b/.gitignore
index 5500ec037..790404535 100644
--- a/.gitignore
+++ b/.gitignore
@@ -83,6 +83,7 @@ docs/_build/
 Tests/images/README.md
 Tests/images/crash_1.tif
 Tests/images/crash_2.tif
+Tests/images/crash-81154a65438ba5aaeca73fd502fa4850fbde60f8.tif
 Tests/images/string_dimension.tiff
 Tests/images/jpeg2000
 Tests/images/msp
diff --git a/Tests/test_file_tiff.py b/Tests/test_file_tiff.py
index d5dda5799..236fcf445 100644
--- a/Tests/test_file_tiff.py
+++ b/Tests/test_file_tiff.py
@@ -698,6 +698,8 @@ class TestFileTiff:
     # Ignore this UserWarning which triggers for four tags:
     # "Possibly corrupt EXIF data.  Expecting to read 50404352 bytes but..."
     @pytest.mark.filterwarnings("ignore:Possibly corrupt EXIF data")
+    # Ignore this UserWarning:
+    @pytest.mark.filterwarnings("ignore:Truncated File Read")
     @pytest.mark.skipif(
         not os.path.exists("Tests/images/string_dimension.tiff"),
         reason="Extra image files not installed",
diff --git a/Tests/test_imagepalette.py b/Tests/test_imagepalette.py
index 5a59b7799..475d249ed 100644
--- a/Tests/test_imagepalette.py
+++ b/Tests/test_imagepalette.py
@@ -16,10 +16,10 @@ def test_sanity():
 
 
 def test_reload():
-    im = Image.open("Tests/images/hopper.gif")
-    original = im.copy()
-    im.palette.dirty = 1
-    assert_image_equal(im.convert("RGB"), original.convert("RGB"))
+    with Image.open("Tests/images/hopper.gif") as im:
+        original = im.copy()
+        im.palette.dirty = 1
+        assert_image_equal(im.convert("RGB"), original.convert("RGB"))
 
 
 def test_getcolor():
diff --git a/Tests/test_map.py b/Tests/test_map.py
index 752c5f268..42f3447eb 100644
--- a/Tests/test_map.py
+++ b/Tests/test_map.py
@@ -24,11 +24,17 @@ def test_overflow():
 
 
 def test_tobytes():
+    # Note that this image triggers the decompression bomb warning:
+    max_pixels = Image.MAX_IMAGE_PIXELS
+    Image.MAX_IMAGE_PIXELS = None
+
     # Previously raised an access violation on Windows
     with Image.open("Tests/images/l2rgb_read.bmp") as im:
         with pytest.raises((ValueError, MemoryError, OSError)):
             im.tobytes()
 
+    Image.MAX_IMAGE_PIXELS = max_pixels
+
 
 @pytest.mark.skipif(sys.maxsize <= 2 ** 32, reason="Requires 64-bit system")
 def test_ysize():
diff --git a/Tests/test_tiff_crashes.py b/Tests/test_tiff_crashes.py
index 6cdb8e44d..143765b8e 100644
--- a/Tests/test_tiff_crashes.py
+++ b/Tests/test_tiff_crashes.py
@@ -40,6 +40,7 @@ from .helper import on_ci
 )
 @pytest.mark.filterwarnings("ignore:Possibly corrupt EXIF data")
 @pytest.mark.filterwarnings("ignore:Metadata warning")
+@pytest.mark.filterwarnings("ignore:Truncated File Read")
 def test_tiff_crashes(test_file):
     try:
         with Image.open(test_file) as im: