diff --git a/tensorflow/workspace.bzl b/tensorflow/workspace.bzl
index 2535941d668..5d83478e39a 100755
--- a/tensorflow/workspace.bzl
+++ b/tensorflow/workspace.bzl
@@ -710,8 +710,8 @@ def tf_repositories(path_prefix = "", tf_repo_name = ""):
     )
 
     # Check out LLVM and MLIR from llvm-project.
-    LLVM_COMMIT = "943660fd15f193dc6961597c25541fee2e01ebbb"
-    LLVM_SHA256 = "72a3f845eb1839b32bccaffa317517cca910511896b68f5c18959a579d57d4f2"
+    LLVM_COMMIT = "e808cab824488af137b62902e65dec3827b83b46"
+    LLVM_SHA256 = "99c30723f2b066bc9145bc43f762cdbde10fada818004dd0cc56abc5761606ac"
     LLVM_URLS = [
         "https://storage.googleapis.com/mirror.tensorflow.org/github.com/llvm/llvm-project/archive/{commit}.tar.gz".format(commit = LLVM_COMMIT),
         "https://github.com/llvm/llvm-project/archive/{commit}.tar.gz".format(commit = LLVM_COMMIT),
diff --git a/third_party/mlir/BUILD b/third_party/mlir/BUILD
index 5627067ac5e..18a7c4df7d7 100644
--- a/third_party/mlir/BUILD
+++ b/third_party/mlir/BUILD
@@ -545,6 +545,7 @@ cc_library(
     deps = [
         ":Affine",
         ":AffinePassIncGen",
+        ":AffineUtils",
         ":Analysis",
         ":IR",
         ":Pass",
@@ -2768,6 +2769,7 @@ cc_library(
         "@llvm-project//mlir/test:TestDialect",
         "@llvm-project//mlir/test:TestIR",
         "@llvm-project//mlir/test:TestPass",
+        "@llvm-project//mlir/test:TestReducer",
         "@llvm-project//mlir/test:TestSPIRV",
         "@llvm-project//mlir/test:TestTransforms",
     ],
@@ -2916,6 +2918,7 @@ cc_binary(
         "@llvm-project//mlir/test:TestDialect",
         "@llvm-project//mlir/test:TestIR",
         "@llvm-project//mlir/test:TestPass",
+        "@llvm-project//mlir/test:TestReducer",
         "@llvm-project//mlir/test:TestSPIRV",
         "@llvm-project//mlir/test:TestTransforms",
     ],
diff --git a/third_party/mlir/test.BUILD b/third_party/mlir/test.BUILD
index 4b999bfa466..e0966054542 100644
--- a/third_party/mlir/test.BUILD
+++ b/third_party/mlir/test.BUILD
@@ -167,6 +167,18 @@ cc_library(
     ],
 )
 
+cc_library(
+    name = "TestReducer",
+    srcs = [
+        "lib/Reducer/MLIRTestReducer.cpp",
+    ],
+    deps = [
+        "@llvm-project//mlir:IR",
+        "@llvm-project//mlir:Pass",
+        "@llvm-project//mlir:Support",
+    ],
+)
+
 cc_library(
     name = "TestTransforms",
     srcs = glob(["lib/Transforms/*.cpp"]),