diff --git a/Jenkinsfile b/Jenkinsfile
index c193551..a0bbd4a 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -28,6 +28,10 @@ exit 0'''
           steps {
             sh '''arm-none-eabi-gcc -v
 
+cd $WORKSPACE/ext
+for i in *.7z; do 7z x -y $i; done
+
+cd $WORKSPACE
 rm -rf $CH_PATH
 git clone /var/lib/git/ChibiOS $CH_PATH
 cd $CH_PATH
@@ -55,6 +59,10 @@ export CHC_PATH=$WORKSPACE
           steps {
             sh '''arm-none-eabi-gcc -v
 
+cd $WORKSPACE/ext
+for i in *.7z; do 7z x -y $i; done
+
+cd $WORKSPACE
 rm -rf $CH_PATH
 git clone /var/lib/git/ChibiOS $CH_PATH
 cd $CH_PATH
@@ -83,6 +91,10 @@ export CHC_PATH=$WORKSPACE
           steps {
             sh '''arm-none-eabi-gcc -v
 
+cd $WORKSPACE/ext
+for i in *.7z; do 7z x -y $i; done
+
+cd $WORKSPACE
 rm -rf $CH_PATH
 git clone /var/lib/git/ChibiOS $CH_PATH
 cd $CH_PATH
@@ -111,6 +123,10 @@ export CHC_PATH=$WORKSPACE
           steps {
             sh '''arm-none-eabi-gcc -v
 
+cd $WORKSPACE/ext
+for i in *.7z; do 7z x -y $i; done
+
+cd $WORKSPACE
 rm -rf $CH_PATH
 git clone /var/lib/git/ChibiOS $CH_PATH
 cd $CH_PATH
@@ -136,4 +152,4 @@ export CHC_PATH=$WORKSPACE
     CH_BRANCH = 'stable_19.1.x'
     CH_PATH = 'ChibiOS'
   }
-}
+}
\ No newline at end of file