diff --git a/Makefile b/Makefile
index b4e16da06..b2d254997 100644
--- a/Makefile
+++ b/Makefile
@@ -13,7 +13,7 @@
 # limitations under the License.
 
 # Version info for the copy of Eigen we will download and build locally.
-EIGEN_PREFIX = "3bb6a48d8c171cf20b5f8e48bfb4e424fbd4f79e"
+EIGEN_COMMIT = "d71c30c47858effcbd39967097a2d99ee48db464"
 EIGEN_URL = "https://gitlab.com/libeigen/eigen/-/archive/"
 
 # Default build targets. Additional may be added conditionally below.
@@ -178,9 +178,9 @@ check-cuquantum-root-set:
 
 eigen:
 	-rm -rf eigen
-	wget $(EIGEN_URL)/$(EIGEN_PREFIX)/eigen-$(EIGEN_PREFIX).tar.gz
-	tar -xzf eigen-$(EIGEN_PREFIX).tar.gz && mv eigen-$(EIGEN_PREFIX) eigen
-	rm eigen-$(EIGEN_PREFIX).tar.gz
+	wget $(EIGEN_URL)/$(EIGEN_COMMIT)/eigen-$(EIGEN_COMMIT).tar.gz
+	tar -xzf eigen-$(EIGEN_COMMIT).tar.gz && mv eigen-$(EIGEN_COMMIT) eigen
+	rm eigen-$(EIGEN_COMMIT).tar.gz
 
 .PHONY: clean
 clean:
diff --git a/WORKSPACE b/WORKSPACE
index a8a435fa1..91266a773 100644
--- a/WORKSPACE
+++ b/WORKSPACE
@@ -55,10 +55,8 @@ load("@org_tensorflow//tensorflow:workspace0.bzl", "workspace")
 
 workspace()
 
-
-EIGEN_COMMIT = "3bb6a48d8c171cf20b5f8e48bfb4e424fbd4f79e"
-EIGEN_SHA256 = "eca9847b3fe6249e0234a342b78f73feec07d29f534e914ba5f920f3e09383a3"
-
+EIGEN_COMMIT = "d71c30c47858effcbd39967097a2d99ee48db464"  # 3.4.1
+EIGEN_SHA256 = "f1d28c2205d015490a685b1e5a171c434da87f757746724de3cb85e69621dec2"
 
 http_archive(
     name = "eigen",
@@ -70,11 +68,11 @@ cc_library(
 )
     """,
     sha256 = EIGEN_SHA256,
-        strip_prefix = "eigen-{commit}".format(commit = EIGEN_COMMIT),
-        urls = [
-            "https://storage.googleapis.com/mirror.tensorflow.org/gitlab.com/libeigen/eigen/-/archive/{commit}/eigen-{commit}.tar.gz".format(commit = EIGEN_COMMIT),
-            "https://gitlab.com/libeigen/eigen/-/archive/{commit}/eigen-{commit}.tar.gz".format(commit = EIGEN_COMMIT),
-        ],
+    strip_prefix = "eigen-{commit}".format(commit = EIGEN_COMMIT),
+    urls = [
+        "https://storage.googleapis.com/mirror.tensorflow.org/gitlab.com/libeigen/eigen/-/archive/{commit}/eigen-{commit}.tar.gz".format(commit = EIGEN_COMMIT),
+        "https://gitlab.com/libeigen/eigen/-/archive/{commit}/eigen-{commit}.tar.gz".format(commit = EIGEN_COMMIT),
+    ],
 )
 
 load("//third_party/cuquantum:cuquantum_configure.bzl", "cuquantum_configure")