diff --git a/.github/workflows/regress.yml b/.github/workflows/regress.yml
index 952a77179..a49ac3f23 100644
--- a/.github/workflows/regress.yml
+++ b/.github/workflows/regress.yml
@@ -47,7 +47,7 @@ jobs:
             build-essential \
             libevent-dev \
             libncurses-dev \
-            libutf8proc-dev
+            libutf8proc-dev \
             pkg-config
 
       - name: dependencies