diff --git a/index.Rmd b/index.Rmd
index 2839885..481459f 100644
--- a/index.Rmd
+++ b/index.Rmd
@@ -57,7 +57,7 @@ March 7  | [Control Structures I](Lectures/ControlStructures_I.html)| -
 March 12 | Spring Recess | -
 March 13 | Spring Recess | -
 March 14 | Spring Recess | -
-March 19  | [dplyr/SQL](Lectures/dplyr_lecture1.html)| -
+March 19  | [dplyr/SQL](Lectures/dplyr_Lecture1.html)| -
 March 20  | - | [Homework #8](Homeworks/Homework_06a.html)
 March 21  | [Control Structures I](Lectures/Lecture16_S2021.xhtml) | -
 March 26  | [Control Structures II](Lectures/Lecture17_S2021.xhtml) | -
diff --git a/index.html b/index.html
index 149177a..14908a1 100644
--- a/index.html
+++ b/index.html
@@ -249,7 +249,7 @@ <h2>Lecture Outlines &amp; Homework Assignments</h2>
 </tr>
 <tr class="even">
 <td>March 19</td>
-<td><a href="Lectures/dplyr_lecture1.html">dplyr/SQL</a></td>
+<td><a href="Lectures/dplyr_Lecture1.html">dplyr/SQL</a></td>
 <td>-</td>
 </tr>
 <tr class="odd">