diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 0a62729..832724b 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -22,7 +22,7 @@ jobs:
         run: |
           rev=`git rev-parse HEAD`
           pwd
-          export DFS_NO_COMPILE=1 DFS_NO_UPDATE=1
+          export DFS_NO_COMPILE=1 DFS_DEV=1
           ./install.sh
           test `git rev-parse HEAD` = "$rev"
 
@@ -70,7 +70,7 @@ jobs:
         run: |
           rev=`git rev-parse HEAD`
           pwd
-          export DFS_NO_COMPILE=1 DFS_NO_UPDATE=1
+          export DFS_NO_COMPILE=1 DFS_DEV=1
           ./install.sh
           test `git rev-parse HEAD` = "$rev"
 
diff --git a/.update.sh b/.update.sh
index ad98d33..a3f0579 100644
--- a/.update.sh
+++ b/.update.sh
@@ -25,7 +25,11 @@ if [[ "$(git rev-parse HEAD)" == "$dfs_commit" ]]; then
     post_log "INFO" "$THIS_FILE" "nothing to do"
 else
     fmt_info "checking out to commit $dfs_commit ..."
-    git -c advice.detachedHead=false checkout $dfs_commit
+    if [[ -z "DFS_DEV" ]]; then
+        git -c advice.detachedHead=false checkout $dfs_commit
+    else
+        fmt_warning "won't really checkout in dev mode"
+    done
     post_log "INFO" "$THIS_FILE" "will check out to commit $dfs_commit"
     cp ./.update.sh ./update.sh && chmod +x ./update.sh && exit
 fi
diff --git a/install.sh b/install.sh
index 01db809..a315f49 100755
--- a/install.sh
+++ b/install.sh
@@ -142,10 +142,8 @@ install_update(){
     fmt_note "installing update.sh ..."
     cp "${DOTFILES}/.update.sh" "${DOTFILES}/update.sh"
     chmod +x "${DOTFILES}/update.sh"
-    if [[ -z "$DFS_NO_UPDATE" ]]; then
-        fmt_note "running update.sh ..."
-        ${DOTFILES}/update.sh
-    fi
+    fmt_note "running update.sh ..."
+    ${DOTFILES}/update.sh
 }
 
 uninstall_update(){