diff --git a/cmake/MujocoDependencies.cmake b/cmake/MujocoDependencies.cmake
index e6079472..600ab1fd 100644
--- a/cmake/MujocoDependencies.cmake
+++ b/cmake/MujocoDependencies.cmake
@@ -39,7 +39,7 @@ set(MUJOCO_DEP_VERSION_qhull
     CACHE STRING "Version of `qhull` to be fetched."
 )
 set(MUJOCO_DEP_VERSION_Eigen3
-    7fd7a3f946e5ac152d28dad388cff8bfa1026925
+    2a9055b50ed22101da7d77e999b90ed50956fe0b
     CACHE STRING "Version of `Eigen3` to be fetched."
 )
 
diff --git a/python/mujoco/CMakeLists.txt b/python/mujoco/CMakeLists.txt
index 9d97a4bd..56e63e67 100644
--- a/python/mujoco/CMakeLists.txt
+++ b/python/mujoco/CMakeLists.txt
@@ -173,7 +173,7 @@ findorfetch(
   GIT_REPO
   https://gitlab.com/libeigen/eigen
   GIT_TAG
-  7fd7a3f946e5ac152d28dad388cff8bfa1026925
+  2a9055b50ed22101da7d77e999b90ed50956fe0b
   TARGETS
   Eigen3::Eigen
   EXCLUDE_FROM_ALL