diff --git a/projects/pygments/fuzz_guesser.py b/projects/pygments/fuzz_guesser.py
index 30348c79a..de9565884 100644
--- a/projects/pygments/fuzz_guesser.py
+++ b/projects/pygments/fuzz_guesser.py
@@ -22,6 +22,9 @@ import pygments.lexers
 import pygments.util
 
 def TestOneInput(data: bytes) -> int:
+  if len(data) > (2 << 18):
+    return
+
   try:
     lexer = pygments.lexers.guess_lexer(str(data))
   except pygments.util.ClassNotFound:
diff --git a/projects/pygments/fuzz_lexers.py b/projects/pygments/fuzz_lexers.py
index dfff7d29c..97e4cedf9 100644
--- a/projects/pygments/fuzz_lexers.py
+++ b/projects/pygments/fuzz_lexers.py
@@ -32,6 +32,8 @@ FORMATTERS = [BBCodeFormatter(), GroffFormatter(), HtmlFormatter(),
 
 
 def TestOneInput(data: bytes) -> int:
+  if len(data) > (2 << 18):
+    return
   fdp = atheris.FuzzedDataProvider(data)
   random_lexer = pygments.lexers.get_lexer_by_name(fdp.PickValueInList(LEXERS))
   formatter = fdp.PickValueInList(FORMATTERS)