diff --git a/process-static b/process-static
index c4fd4d73..ac809e0d 100755
--- a/process-static
+++ b/process-static
@@ -43,10 +43,7 @@ done
 
 sed -i "$replace" static-tmp/**/*.html nginx-tmp/nginx.conf
 
-# temporarily disabled for GitHub Actions due to unresolved compatibility issue
-if [[ ${GITHUB_ACTIONS:-false} != true ]]; then
-    gixy nginx-tmp/nginx.conf
-fi
+gixy nginx-tmp/nginx.conf
 
 xmllint --noout static-tmp/**/*.html
 validatornu --Werror --also-check-css --also-check-svg static-tmp/**/!(bimi).@(css|html|svg)
diff --git a/requirements.txt b/requirements.txt
index e87585d0..3ee6747f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,4 @@
 lxml
 cssselect
+gixy==0.1.20
+pyparsing==2.4.7