diff --git a/.changeset/mean-starfishes-chew.md b/.changeset/mean-starfishes-chew.md
new file mode 100644
index 0000000..3a09d95
--- /dev/null
+++ b/.changeset/mean-starfishes-chew.md
@@ -0,0 +1,5 @@
+---
+"@zazuko/shacl-test": patch
+---
+
+Make `--filter` case-insensitive
diff --git a/run.sh b/run.sh
index 7aa4d9c..10505e9 100755
--- a/run.sh
+++ b/run.sh
@@ -72,7 +72,7 @@ for file in $validCases; do
   relativePath=$(node -e "console.log(require('path').relative('$WORKING_DIR', '$file'))")
 
   # check if filter is set and skip if not matching
-  if [ -n "$filter" ] && ! echo "$file" | grep -q "$filter"; then
+  if [ -n "$filter" ] && ! echo "$file" | grep -iq "$filter"; then
     echo "ℹ️SKIP - $relativePath"
     continue
   fi
@@ -101,7 +101,7 @@ for file in $invalidCases; do
   fi
 
   # check if pattern is set and skip if not matching
-  if [ -n "$filter" ] && ! echo "$file" | grep -q "$filter"; then
+  if [ -n "$filter" ] && ! echo "$file" | grep -iq "$filter"; then
     echo "ℹ️SKIP - $relativePath"
     continue
   fi