diff --git a/docs/getting_started/install.md b/docs/getting_started/install.md
index a00b29a573..433b4df3cc 100644
--- a/docs/getting_started/install.md
+++ b/docs/getting_started/install.md
@@ -613,7 +613,7 @@ next section.
 8.  Install OpenCV.
 
     Download the Windows executable from https://opencv.org/releases/ and
-    install. We currently use OpenCV 3.4.10. Remember to edit the [`WORKSPACE`]
+    install. We currently use OpenCV 3.4.12. Remember to edit the [`WORKSPACE`]
     file if OpenCV is not installed at `C:\opencv`.
 
     ```
diff --git a/third_party/opencv_windows.BUILD b/third_party/opencv_windows.BUILD
index ecf788ee00..968ba0b375 100644
--- a/third_party/opencv_windows.BUILD
+++ b/third_party/opencv_windows.BUILD
@@ -5,7 +5,7 @@ licenses(["notice"])  # BSD license
 
 exports_files(["LICENSE"])
 
-OPENCV_VERSION = "3410"  # 3.4.10
+OPENCV_VERSION = "3412"  # 3.4.12
 
 config_setting(
     name = "opt_build",
@@ -17,7 +17,7 @@ config_setting(
     values = {"compilation_mode": "dbg"},
 )
 
-# The following build rule assumes that the executable "opencv-3.4.10-vc14_vc15.exe"
+# The following build rule assumes that the executable "opencv-3.4.12-vc14_vc15.exe"
 # is downloaded and the files are extracted to local.
 # If you install OpenCV separately, please modify the build rule accordingly.
 cc_library(