diff --git a/backend/pom.xml b/backend/pom.xml
index 0637d229be..e323a96730 100644
--- a/backend/pom.xml
+++ b/backend/pom.xml
@@ -92,11 +92,6 @@
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-lang3</artifactId>
         </dependency>
-        <dependency>
-            <groupId>commons-validator</groupId>
-            <artifactId>commons-validator</artifactId>
-            <version>1.7</version>
-        </dependency>
         <dependency>
             <groupId>org.apache.commons</groupId>
             <artifactId>commons-text</artifactId>
diff --git a/backend/src/main/java/ca/bc/gov/app/util/ClientValidationUtils.java b/backend/src/main/java/ca/bc/gov/app/util/ClientValidationUtils.java
index 081858c013..b5d48570fd 100644
--- a/backend/src/main/java/ca/bc/gov/app/util/ClientValidationUtils.java
+++ b/backend/src/main/java/ca/bc/gov/app/util/ClientValidationUtils.java
@@ -2,17 +2,19 @@
 
 import ca.bc.gov.app.dto.client.ClientTypeEnum;
 import ca.bc.gov.app.dto.client.LegalTypeEnum;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
 import lombok.AccessLevel;
 import lombok.NoArgsConstructor;
 import org.apache.commons.lang3.EnumUtils;
 import org.apache.commons.lang3.StringUtils;
-import org.apache.commons.validator.routines.EmailValidator;
 import org.springframework.validation.Errors;
 
 @NoArgsConstructor(access = AccessLevel.PRIVATE)
 public class ClientValidationUtils {
 
-  private static final EmailValidator emailValidator = EmailValidator.getInstance();
+  private static final String EMAIL_REGEX = "^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,4}$";
+  private static final Pattern EMAIL_PATTERN = Pattern.compile(EMAIL_REGEX);
 
   public static void validateEmail(String email, String field, Errors errors) {
     if (StringUtils.isBlank(email)) {
@@ -20,9 +22,10 @@ public static void validateEmail(String email, String field, Errors errors) {
       return;
     }
 
-    if (!emailValidator.isValid(email)) {
+    Matcher emailMatcher = EMAIL_PATTERN.matcher(email);
+    if (!emailMatcher.matches()) {
       errors.rejectValue(field, "You must enter an email address in a valid format. "
-          + "For example: name@example.com");
+                                + "For example: name@example.com");
     }
   }