diff --git a/functions.sh b/functions.sh
index d63ea1d..ce93f42 100755
--- a/functions.sh
+++ b/functions.sh
@@ -53,7 +53,8 @@ delete_line() {
 }
 
 edit_line() {
-    sed -i "${task}s/.*/- $new_task/" "$file.md"
+    escaped_task=$(sed 's/[\/&]/\\&/g' <<< "$new_task")
+    sed -i "${task}s/.*/- $escaped_task/" "$file.md"
     echo "Line ${task} edited."
 }
 
diff --git a/tests.sh b/tests.sh
index 5fc44b2..ecf98b1 100755
--- a/tests.sh
+++ b/tests.sh
@@ -128,8 +128,17 @@ if [ -z "$(sed -n "/# $mon/ p" "$file.md")" ]; then
 fi
 cd - > /dev/null
 
-# Test edit command
-output=$("$woche_script_path" edit 2 "New task")
+# Test add task with punctituation to a day command
+output=$("$woche_script_path" mon "Test task with punctuation: ;,!@#$%^&*()_+")
+if [[ "$output" == *"Task 'Test task with punctuation: ;,!@#$%^&*()_+' added to"* ]]; then
+    echo "Test 'add task to a day' command: PASSED"
+else
+    echo "Test 'add task to a day' command: FAILED"
+fi
+check_test_result
+
+# Test edit command with punctituation
+output=$("$woche_script_path" edit 2 "New task ,.!@")
 if [[ "$output" == *"Line 2 edited."* ]]; then
     echo "Test 'edit' command: PASSED"
 else
@@ -138,7 +147,7 @@ fi
 
 ## Check if the task is edited on last test
 cd "$path_to_files" > /dev/null
-if [ -z "$(sed -n "2 p" "$file.md" | grep "New task")" ]; then
+if [ -z "$(sed -n "2 p" "$file.md" | grep "New task ,.!@")" ]; then
     echo "Error: Task has not been edited."
     exit 1
 fi
diff --git a/woche.sh b/woche.sh
index d01bb67..b264d5f 100755
--- a/woche.sh
+++ b/woche.sh
@@ -61,7 +61,8 @@ case $1 in
     *)
         file_exists
         day=$(eval echo \$$1)
-        sed -i "/# $day/ a\\- $task" "$file.md"
+        escaped_task=$(sed 's/[\/&]/\\&/g' <<< "$task")
+        sed -i "/# $day/ a\\- $escaped_task" "$file.md"
         echo "Task '$task' added to $day."
         exit 0
         ;;