diff --git a/src/main/java/net/thauvin/erik/mobibot/Utils.java b/src/main/java/net/thauvin/erik/mobibot/Utils.java
index 1ff35f7..b32f261 100644
--- a/src/main/java/net/thauvin/erik/mobibot/Utils.java
+++ b/src/main/java/net/thauvin/erik/mobibot/Utils.java
@@ -247,12 +247,12 @@ public final class Utils {
      * @return The unescaped string.
      */
     public static String unescapeXml(final String str) {
-        return str.replaceAll("&", "&")
-            .replaceAll("&lt;", "<")
-            .replaceAll("&gt;", ">")
-            .replaceAll("&quot;", "\"")
-            .replaceAll("&apos;", "'")
-            .replaceAll("&#39;", "'");
+        return str.replace("&amp;", "&")
+            .replace("&lt;", "<")
+            .replace("&gt;", ">")
+            .replace("&quot;", "\"")
+            .replace("&apos;", "'")
+            .replace("&#39;", "'");
     }
 
     /**
diff --git a/src/main/java/net/thauvin/erik/mobibot/entries/EntriesUtils.java b/src/main/java/net/thauvin/erik/mobibot/entries/EntriesUtils.java
index 63e8561..636fbe4 100644
--- a/src/main/java/net/thauvin/erik/mobibot/entries/EntriesUtils.java
+++ b/src/main/java/net/thauvin/erik/mobibot/entries/EntriesUtils.java
@@ -115,6 +115,6 @@ public final class EntriesUtils {
      * @return The entry's tags.
      */
     public static String buildTags(final int entryIndex, final EntryLink entry) {
-        return (Commands.LINK_CMD + (entryIndex + 1) + "T: " + entry.getPinboardTags().replaceAll(",", ", "));
+        return (Commands.LINK_CMD + (entryIndex + 1) + "T: " + entry.getPinboardTags().replace(",", ", "));
     }
 }
diff --git a/src/main/java/net/thauvin/erik/mobibot/entries/EntryLink.java b/src/main/java/net/thauvin/erik/mobibot/entries/EntryLink.java
index 485bbd5..62fdfa9 100644
--- a/src/main/java/net/thauvin/erik/mobibot/entries/EntryLink.java
+++ b/src/main/java/net/thauvin/erik/mobibot/entries/EntryLink.java
@@ -297,7 +297,7 @@ public class EntryLink implements Serializable {
     @SuppressWarnings("PMD.AvoidInstantiatingObjectsInLoops")
     public final void setTags(final String tags) {
         if (tags != null) {
-            final String[] parts = tags.replaceAll(", ", " ").replaceAll(",", " ").split(" ");
+            final String[] parts = tags.replace(", ", " ").replace(",", " ").split(" ");
 
             SyndCategoryImpl tag;
             String part;
diff --git a/src/main/java/net/thauvin/erik/mobibot/modules/Calc.java b/src/main/java/net/thauvin/erik/mobibot/modules/Calc.java
index b68cc4d..77dafa1 100644
--- a/src/main/java/net/thauvin/erik/mobibot/modules/Calc.java
+++ b/src/main/java/net/thauvin/erik/mobibot/modules/Calc.java
@@ -71,7 +71,7 @@ public class Calc extends AbstractModule {
 
         try {
             final Expression calc = new ExpressionBuilder(query).build();
-            return query.replaceAll(" ", "") + " = " + decimalFormat.format(calc.evaluate());
+            return query.replace(" ", "") + " = " + decimalFormat.format(calc.evaluate());
         } catch (Exception e) {
             return "No idea. This is the kind of math I don't get.";
         }
diff --git a/src/main/java/net/thauvin/erik/mobibot/modules/CurrencyConverter.java b/src/main/java/net/thauvin/erik/mobibot/modules/CurrencyConverter.java
index a50c464..3baa613 100644
--- a/src/main/java/net/thauvin/erik/mobibot/modules/CurrencyConverter.java
+++ b/src/main/java/net/thauvin/erik/mobibot/modules/CurrencyConverter.java
@@ -175,7 +175,7 @@ public final class CurrencyConverter extends ThreadedModule {
                     return new ErrorMessage("You're kidding, right?");
                 } else {
                     try {
-                        final double amt = Double.parseDouble(cmds[0].replaceAll(",", ""));
+                        final double amt = Double.parseDouble(cmds[0].replace(",", ""));
                         final double from = Double.parseDouble(EXCHANGE_RATES.get(cmds[1]
                             .toUpperCase(Constants.LOCALE)));
                         final double to = Double.parseDouble(EXCHANGE_RATES.get(cmds[3].toUpperCase(Constants.LOCALE)));
diff --git a/src/main/java/net/thauvin/erik/mobibot/modules/Joke.java b/src/main/java/net/thauvin/erik/mobibot/modules/Joke.java
index cfd5dad..b1b826a 100644
--- a/src/main/java/net/thauvin/erik/mobibot/modules/Joke.java
+++ b/src/main/java/net/thauvin/erik/mobibot/modules/Joke.java
@@ -89,8 +89,8 @@ public final class Joke extends ThreadedModule {
 
                 //noinspection RegExpRedundantEscape
                 return new PublicMessage(
-                    json.getJSONObject("value").get("joke").toString().replaceAll("\\'", "'")
-                        .replaceAll("\\\"", "\""));
+                    json.getJSONObject("value").get("joke").toString().replace("\\'", "'")
+                        .replace("\\\"", "\""));
             }
         } catch (Exception e) {
             throw new ModuleException("randomJoke()", "An error has occurred retrieving a random joke.", e);
diff --git a/src/test/java/net/thauvin/erik/mobibot/modules/LocalProperties.java b/src/test/java/net/thauvin/erik/mobibot/modules/LocalProperties.java
index 0cd1082..900b7b9 100644
--- a/src/test/java/net/thauvin/erik/mobibot/modules/LocalProperties.java
+++ b/src/test/java/net/thauvin/erik/mobibot/modules/LocalProperties.java
@@ -65,7 +65,7 @@ class LocalProperties {
     }
 
     private static String keyToEnv(final String key) {
-        return key.replaceAll("-", "_").toUpperCase(Constants.LOCALE);
+        return key.replace("-", "_").toUpperCase(Constants.LOCALE);
     }
 
     @BeforeSuite(alwaysRun = true)