diff --git a/mypy-requirements.txt b/mypy-requirements.txt
index b1bcacb89203..8862d3df9a2e 100644
--- a/mypy-requirements.txt
+++ b/mypy-requirements.txt
@@ -6,4 +6,4 @@ mypy_extensions>=1.0.0
 pathspec>=1.0.0
 tomli>=1.1.0; python_version<'3.11'
 librt>=0.15.0; platform_python_implementation != 'PyPy'
-ast-serialize>=0.11.1,<1.0.0
+ast-serialize>=0.11.2,<1.0.0
diff --git a/pyproject.toml b/pyproject.toml
index a999faf1a5b9..3db4c9c8ddc9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,7 @@ requires = [
     "types-psutil",
     "types-setuptools",
     # required to work around a mypyc import bug
-    "ast-serialize>=0.11.1,<1.0.0",
+    "ast-serialize>=0.11.2,<1.0.0",
 ]
 build-backend = "setuptools.build_meta"
 
@@ -59,7 +59,7 @@ dependencies = [
   "pathspec>=1.0.0",
   "tomli>=1.1.0; python_version<'3.11'",
   "librt>=0.15.0; platform_python_implementation != 'PyPy'",
-  "ast-serialize>=0.11.1,<1.0.0",
+  "ast-serialize>=0.11.2,<1.0.0",
 ]
 dynamic = ["version"]
 
diff --git a/test-data/unit/check-literal.test b/test-data/unit/check-literal.test
index 595e4c7688d9..30173accca0a 100644
--- a/test-data/unit/check-literal.test
+++ b/test-data/unit/check-literal.test
@@ -3148,3 +3148,20 @@ f(X.a.value)
 g(X.a.value)
 h(X.a.value)
 [builtins fixtures/primitives.pyi]
+
+[case testInvalidTypeLikeLiteralString]
+from typing import Literal
+
+Foo = Literal[
+    "duration[s][pyarrow]",
+    "duration[ms][pyarrow]",
+]
+foo: Foo
+reveal_type(foo)  # N: Revealed type is "Literal['duration[s][pyarrow]'] | Literal['duration[ms][pyarrow]']"
+
+bar: Literal[
+    "duration[s][pyarrow]",
+    "duration[ms][pyarrow]",
+]
+reveal_type(bar)  # N: Revealed type is "Literal['duration[s][pyarrow]'] | Literal['duration[ms][pyarrow]']"
+[builtins fixtures/primitives.pyi]
diff --git a/test-requirements.txt b/test-requirements.txt
index 59fc72e2aa9a..825b0836f3ad 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -4,7 +4,7 @@
 #
 #    pip-compile --allow-unsafe --output-file=test-requirements.txt --strip-extras test-requirements.in
 #
-ast-serialize==0.11.1
+ast-serialize==0.11.2
     # via -r mypy-requirements.txt
 attrs==26.1.0
     # via -r test-requirements.in