diff --git a/README.en.md b/README.en.md
index 7896cb6..2a83188 100644
--- a/README.en.md
+++ b/README.en.md
@@ -41,7 +41,7 @@ nodelet_core/
 
 #### Installation
 
-1.  Dowload RPM
+1.  Download RPM
 
 aarch64:
 
@@ -55,11 +55,11 @@ wget https://117.78.1.88/build/home:davidhan:branches:openEuler:22.03:LTS/standa
 
 aarch64:
 
-sudo rpm -ivh ros-noetic-ros-nodelet_core-1.10.1-1.oe2203.aarch64.rpm --nodeps -force
+sudo rpm -ivh ros-noetic-ros-nodelet_core-1.10.1-1.oe2203.aarch64.rpm --nodeps --force
 
 x86_64:
 
-sudo rpm -ivh ros-noetic-ros-nodelet_core-1.10.1-1.oe2203.x86_64.rpm --nodeps -force
+sudo rpm -ivh ros-noetic-ros-nodelet_core-1.10.1-1.oe2203.x86_64.rpm --nodeps --force
 
 #### Instructions
 
diff --git a/README.md b/README.md
index 10430fd..d9bca53 100644
--- a/README.md
+++ b/README.md
@@ -51,11 +51,11 @@ wget https://117.78.1.88/build/home:davidhan:branches:openEuler:22.03:LTS/standa
 
 aarch64:
 
-sudo rpm -ivh ros-noetic-ros-nodelet_core-1.10.1-1.oe2203.aarch64.rpm --nodeps -force
+sudo rpm -ivh ros-noetic-ros-nodelet_core-1.10.1-1.oe2203.aarch64.rpm --nodeps --force
 
 x86_64:
 
-sudo rpm -ivh ros-noetic-ros-nodelet_core-1.10.1-1.oe2203.x86_64.rpm --nodeps -force
+sudo rpm -ivh ros-noetic-ros-nodelet_core-1.10.1-1.oe2203.x86_64.rpm --nodeps --force
 
 #### 使用说明