diff --git a/analysis/lesson12-relational-data.Rmd b/analysis/lesson12-relational-data.Rmd
index 709bfc3..9c8c595 100644
--- a/analysis/lesson12-relational-data.Rmd
+++ b/analysis/lesson12-relational-data.Rmd
@@ -132,7 +132,7 @@ To practice the `join` functions, we'll subset the `flights` dataframe as follow
 
 ```{r, eval = FALSE}
 
-flights2 <- flights %>% 
+flights2 <- flights |> 
   select(year:day, hour, origin, dest, tailnum, carrier)
 flights2
 
@@ -168,8 +168,8 @@ library(nycflights13) #install.packages("nycflights13")
 ```{r, eval = FALSE}
     library(maps) #install.packages("maps")
 
-    airports %>%
-      semi_join(flights, c("faa" = "dest")) %>%
+    airports |>
+      semi_join(flights, c("faa" = "dest")) |>
       ggplot(aes(lon, lat)) +
         borders("state") +
         geom_point() +
diff --git a/docs/lesson12-relational-data.html b/docs/lesson12-relational-data.html
index e0ea7d5..4f3895f 100644
--- a/docs/lesson12-relational-data.html
+++ b/docs/lesson12-relational-data.html
@@ -575,7 +575,7 @@ <h3>Row and column binding</h3>
 <h3>Join functions</h3>
 <p>To practice the <code>join</code> functions, we’ll subset the
 <code>flights</code> dataframe as follows</p>
-<pre class="r"><code>flights2 &lt;- flights %&gt;% 
+<pre class="r"><code>flights2 &lt;- flights |&gt; 
   select(year:day, hour, origin, dest, tailnum, carrier)
 flights2</code></pre>
 <p><br></p>
@@ -606,8 +606,8 @@ <h3>Optional exercises (from the R for Data Science chapter)</h3>
 </ol>
 <pre class="r"><code>    library(maps) #install.packages(&quot;maps&quot;)
 
-    airports %&gt;%
-      semi_join(flights, c(&quot;faa&quot; = &quot;dest&quot;)) %&gt;%
+    airports |&gt;
+      semi_join(flights, c(&quot;faa&quot; = &quot;dest&quot;)) |&gt;
       ggplot(aes(lon, lat)) +
         borders(&quot;state&quot;) +
         geom_point() +