diff --git a/src/main/java/biweekly/component/ICalComponent.java b/src/main/java/biweekly/component/ICalComponent.java
index 20818996..ca5e9677 100644
--- a/src/main/java/biweekly/component/ICalComponent.java
+++ b/src/main/java/biweekly/component/ICalComponent.java
@@ -52,7 +52,7 @@ public abstract class ICalComponent {
 	protected final ListMultimap<Class<? extends ICalComponent>, ICalComponent> components;
 	protected final ListMultimap<Class<? extends ICalProperty>, ICalProperty> properties;
 
-	public ICalComponent() {
+	protected ICalComponent() {
 		components = new ListMultimap<Class<? extends ICalComponent>, ICalComponent>();
 		properties = new ListMultimap<Class<? extends ICalProperty>, ICalProperty>();
 	}
diff --git a/src/main/java/biweekly/io/scribe/component/ICalComponentScribe.java b/src/main/java/biweekly/io/scribe/component/ICalComponentScribe.java
index f6d88309..18c0dcfa 100644
--- a/src/main/java/biweekly/io/scribe/component/ICalComponentScribe.java
+++ b/src/main/java/biweekly/io/scribe/component/ICalComponentScribe.java
@@ -52,7 +52,7 @@ public abstract class ICalComponentScribe<T extends ICalComponent> {
 	 * @param clazz the component's class
 	 * @param componentName the component's name (e.g. "VEVENT")
 	 */
-	public ICalComponentScribe(Class<T> clazz, String componentName) {
+	protected ICalComponentScribe(Class<T> clazz, String componentName) {
 		this.clazz = clazz;
 		this.componentName = componentName;
 	}
diff --git a/src/main/java/biweekly/io/scribe/property/BinaryPropertyScribe.java b/src/main/java/biweekly/io/scribe/property/BinaryPropertyScribe.java
index 462b0a22..d61ed4bf 100644
--- a/src/main/java/biweekly/io/scribe/property/BinaryPropertyScribe.java
+++ b/src/main/java/biweekly/io/scribe/property/BinaryPropertyScribe.java
@@ -43,7 +43,7 @@
  * @author Michael Angstadt
  */
 public abstract class BinaryPropertyScribe<T extends BinaryProperty> extends ICalPropertyScribe<T> {
-	public BinaryPropertyScribe(Class<T> clazz, String propertyName) {
+	protected BinaryPropertyScribe(Class<T> clazz, String propertyName) {
 		super(clazz, propertyName, ICalDataType.URI);
 	}
 
diff --git a/src/main/java/biweekly/io/scribe/property/DateOrDateTimePropertyScribe.java b/src/main/java/biweekly/io/scribe/property/DateOrDateTimePropertyScribe.java
index 78fe9cff..62978c94 100644
--- a/src/main/java/biweekly/io/scribe/property/DateOrDateTimePropertyScribe.java
+++ b/src/main/java/biweekly/io/scribe/property/DateOrDateTimePropertyScribe.java
@@ -44,7 +44,7 @@
  * @author Michael Angstadt
  */
 public abstract class DateOrDateTimePropertyScribe<T extends DateOrDateTimeProperty> extends ICalPropertyScribe<T> {
-	public DateOrDateTimePropertyScribe(Class<T> clazz, String propertyName) {
+	protected DateOrDateTimePropertyScribe(Class<T> clazz, String propertyName) {
 		super(clazz, propertyName, ICalDataType.DATE_TIME);
 	}
 
diff --git a/src/main/java/biweekly/io/scribe/property/DateTimePropertyScribe.java b/src/main/java/biweekly/io/scribe/property/DateTimePropertyScribe.java
index d309d11e..0b471d4c 100644
--- a/src/main/java/biweekly/io/scribe/property/DateTimePropertyScribe.java
+++ b/src/main/java/biweekly/io/scribe/property/DateTimePropertyScribe.java
@@ -46,7 +46,7 @@
  * @author Michael Angstadt
  */
 public abstract class DateTimePropertyScribe<T extends DateTimeProperty> extends ICalPropertyScribe<T> {
-	public DateTimePropertyScribe(Class<T> clazz, String propertyName) {
+	protected DateTimePropertyScribe(Class<T> clazz, String propertyName) {
 		super(clazz, propertyName, ICalDataType.DATE_TIME);
 	}
 
diff --git a/src/main/java/biweekly/io/scribe/property/ICalPropertyScribe.java b/src/main/java/biweekly/io/scribe/property/ICalPropertyScribe.java
index f07c570a..c22d5b40 100644
--- a/src/main/java/biweekly/io/scribe/property/ICalPropertyScribe.java
+++ b/src/main/java/biweekly/io/scribe/property/ICalPropertyScribe.java
@@ -84,7 +84,7 @@ public abstract class ICalPropertyScribe<T extends ICalProperty> {
 	 * @param clazz the property class
 	 * @param propertyName the property name (e.g. "VERSION")
 	 */
-	public ICalPropertyScribe(Class<T> clazz, String propertyName) {
+	protected ICalPropertyScribe(Class<T> clazz, String propertyName) {
 		this(clazz, propertyName, null);
 	}
 
@@ -95,7 +95,7 @@ public ICalPropertyScribe(Class<T> clazz, String propertyName) {
 	 * @param defaultDataType the property's default data type (e.g. "text") or
 	 * null if unknown
 	 */
-	public ICalPropertyScribe(Class<T> clazz, String propertyName, ICalDataType defaultDataType) {
+	protected ICalPropertyScribe(Class<T> clazz, String propertyName, ICalDataType defaultDataType) {
 		this(clazz, propertyName, defaultDataType, new QName(XCAL_NS, propertyName.toLowerCase()));
 	}
 
@@ -109,7 +109,7 @@ public ICalPropertyScribe(Class<T> clazz, String propertyName, ICalDataType defa
 	 * (by default, the XML element name is set to the lower-cased property
 	 * name, and the element namespace is set to the xCal namespace)
 	 */
-	public ICalPropertyScribe(Class<T> clazz, String propertyName, ICalDataType defaultDataType, QName qname) {
+	protected ICalPropertyScribe(Class<T> clazz, String propertyName, ICalDataType defaultDataType, QName qname) {
 		this.clazz = clazz;
 		this.propertyName = propertyName;
 		this.defaultDataType = defaultDataType;
diff --git a/src/main/java/biweekly/io/scribe/property/IntegerPropertyScribe.java b/src/main/java/biweekly/io/scribe/property/IntegerPropertyScribe.java
index 591db1da..142c5768 100644
--- a/src/main/java/biweekly/io/scribe/property/IntegerPropertyScribe.java
+++ b/src/main/java/biweekly/io/scribe/property/IntegerPropertyScribe.java
@@ -42,7 +42,7 @@
  * @author Michael Angstadt
  */
 public abstract class IntegerPropertyScribe<T extends IntegerProperty> extends ICalPropertyScribe<T> {
-	public IntegerPropertyScribe(Class<T> clazz, String propertyName) {
+	protected IntegerPropertyScribe(Class<T> clazz, String propertyName) {
 		super(clazz, propertyName, ICalDataType.INTEGER);
 	}
 
diff --git a/src/main/java/biweekly/io/scribe/property/ListPropertyScribe.java b/src/main/java/biweekly/io/scribe/property/ListPropertyScribe.java
index b454a94b..d45f850b 100644
--- a/src/main/java/biweekly/io/scribe/property/ListPropertyScribe.java
+++ b/src/main/java/biweekly/io/scribe/property/ListPropertyScribe.java
@@ -45,11 +45,11 @@
  * @author Michael Angstadt
  */
 public abstract class ListPropertyScribe<T extends ListProperty<V>, V> extends ICalPropertyScribe<T> {
-	public ListPropertyScribe(Class<T> clazz, String propertyName) {
+	protected ListPropertyScribe(Class<T> clazz, String propertyName) {
 		this(clazz, propertyName, ICalDataType.TEXT);
 	}
 
-	public ListPropertyScribe(Class<T> clazz, String propertyName, ICalDataType dataType) {
+	protected ListPropertyScribe(Class<T> clazz, String propertyName, ICalDataType dataType) {
 		super(clazz, propertyName, dataType);
 	}
 
diff --git a/src/main/java/biweekly/io/scribe/property/RecurrencePropertyScribe.java b/src/main/java/biweekly/io/scribe/property/RecurrencePropertyScribe.java
index 245ad729..1777905d 100644
--- a/src/main/java/biweekly/io/scribe/property/RecurrencePropertyScribe.java
+++ b/src/main/java/biweekly/io/scribe/property/RecurrencePropertyScribe.java
@@ -80,7 +80,7 @@ public abstract class RecurrencePropertyScribe<T extends RecurrenceProperty> ext
 	private static final String BYSETPOS = "BYSETPOS";
 	private static final String WKST = "WKST";
 
-	public RecurrencePropertyScribe(Class<T> clazz, String propertyName) {
+	protected RecurrencePropertyScribe(Class<T> clazz, String propertyName) {
 		super(clazz, propertyName);
 	}
 
diff --git a/src/main/java/biweekly/io/scribe/property/TextListPropertyScribe.java b/src/main/java/biweekly/io/scribe/property/TextListPropertyScribe.java
index cdfe264d..68de956d 100644
--- a/src/main/java/biweekly/io/scribe/property/TextListPropertyScribe.java
+++ b/src/main/java/biweekly/io/scribe/property/TextListPropertyScribe.java
@@ -38,7 +38,7 @@
  * @author Michael Angstadt
  */
 public abstract class TextListPropertyScribe<T extends ListProperty<String>> extends ListPropertyScribe<T, String> {
-	public TextListPropertyScribe(Class<T> clazz, String propertyName) {
+	protected TextListPropertyScribe(Class<T> clazz, String propertyName) {
 		super(clazz, propertyName);
 	}
 
diff --git a/src/main/java/biweekly/io/scribe/property/TextPropertyScribe.java b/src/main/java/biweekly/io/scribe/property/TextPropertyScribe.java
index 0822933e..af42c59c 100644
--- a/src/main/java/biweekly/io/scribe/property/TextPropertyScribe.java
+++ b/src/main/java/biweekly/io/scribe/property/TextPropertyScribe.java
@@ -42,11 +42,11 @@
  * @author Michael Angstadt
  */
 public abstract class TextPropertyScribe<T extends TextProperty> extends ICalPropertyScribe<T> {
-	public TextPropertyScribe(Class<T> clazz, String propertyName) {
+	protected TextPropertyScribe(Class<T> clazz, String propertyName) {
 		this(clazz, propertyName, ICalDataType.TEXT);
 	}
 
-	public TextPropertyScribe(Class<T> clazz, String propertyName, ICalDataType dataType) {
+	protected TextPropertyScribe(Class<T> clazz, String propertyName, ICalDataType dataType) {
 		super(clazz, propertyName, dataType);
 	}
 
diff --git a/src/main/java/biweekly/io/scribe/property/UtcOffsetPropertyScribe.java b/src/main/java/biweekly/io/scribe/property/UtcOffsetPropertyScribe.java
index 4b7086cd..70953e4e 100644
--- a/src/main/java/biweekly/io/scribe/property/UtcOffsetPropertyScribe.java
+++ b/src/main/java/biweekly/io/scribe/property/UtcOffsetPropertyScribe.java
@@ -43,7 +43,7 @@
  * @author Michael Angstadt
  */
 public abstract class UtcOffsetPropertyScribe<T extends UtcOffsetProperty> extends ICalPropertyScribe<T> {
-	public UtcOffsetPropertyScribe(Class<T> clazz, String propertyName) {
+	protected UtcOffsetPropertyScribe(Class<T> clazz, String propertyName) {
 		super(clazz, propertyName, ICalDataType.UTC_OFFSET);
 	}
 
diff --git a/src/main/java/biweekly/io/scribe/property/VCalAlarmPropertyScribe.java b/src/main/java/biweekly/io/scribe/property/VCalAlarmPropertyScribe.java
index 3efbf4b7..980ce2ce 100644
--- a/src/main/java/biweekly/io/scribe/property/VCalAlarmPropertyScribe.java
+++ b/src/main/java/biweekly/io/scribe/property/VCalAlarmPropertyScribe.java
@@ -52,11 +52,11 @@
  * @author Michael Angstadt
  */
 public abstract class VCalAlarmPropertyScribe<T extends VCalAlarmProperty> extends ICalPropertyScribe<T> {
-	public VCalAlarmPropertyScribe(Class<T> clazz, String propertyName) {
+	protected VCalAlarmPropertyScribe(Class<T> clazz, String propertyName) {
 		super(clazz, propertyName);
 	}
 
-	public VCalAlarmPropertyScribe(Class<T> clazz, String propertyName, ICalDataType defaultDataType) {
+	protected VCalAlarmPropertyScribe(Class<T> clazz, String propertyName, ICalDataType defaultDataType) {
 		super(clazz, propertyName, defaultDataType);
 	}
 
diff --git a/src/main/java/biweekly/parameter/ICalParameters.java b/src/main/java/biweekly/parameter/ICalParameters.java
index 53f3b7f2..13719b60 100644
--- a/src/main/java/biweekly/parameter/ICalParameters.java
+++ b/src/main/java/biweekly/parameter/ICalParameters.java
@@ -1557,7 +1557,7 @@ public boolean equals(Object obj) {
 	 * @param <T> the enum parameter class
 	 */
 	public abstract class EnumParameterList<T extends EnumParameterValue> extends ICalParameterList<T> {
-		public EnumParameterList(String parameterName) {
+		protected EnumParameterList(String parameterName) {
 			super(parameterName);
 		}
 
@@ -1589,7 +1589,7 @@ public abstract class ICalParameterList<T> extends AbstractList<T> {
 		/**
 		 * @param parameterName the name of the parameter (case insensitive)
 		 */
-		public ICalParameterList(String parameterName) {
+		protected ICalParameterList(String parameterName) {
 			this.parameterName = parameterName;
 			parameterValues = ICalParameters.this.get(parameterName);
 		}
diff --git a/src/main/java/biweekly/property/EnumProperty.java b/src/main/java/biweekly/property/EnumProperty.java
index 81b377e0..9e3225f8 100644
--- a/src/main/java/biweekly/property/EnumProperty.java
+++ b/src/main/java/biweekly/property/EnumProperty.java
@@ -44,7 +44,7 @@ public abstract class EnumProperty extends TextProperty {
 	 * Creates an enum property.
 	 * @param value the property value
 	 */
-	public EnumProperty(String value) {
+	protected EnumProperty(String value) {
 		super(value);
 	}
 
@@ -52,7 +52,7 @@ public EnumProperty(String value) {
 	 * Copy constructor.
 	 * @param original the property to make a copy of
 	 */
-	public EnumProperty(EnumProperty original) {
+	protected EnumProperty(EnumProperty original) {
 		super(original);
 	}
 
diff --git a/src/main/java/biweekly/property/ICalProperty.java b/src/main/java/biweekly/property/ICalProperty.java
index 919dd986..a9a46015 100644
--- a/src/main/java/biweekly/property/ICalProperty.java
+++ b/src/main/java/biweekly/property/ICalProperty.java
@@ -49,7 +49,7 @@ public abstract class ICalProperty {
 	 */
 	protected ICalParameters parameters;
 
-	public ICalProperty() {
+	protected ICalProperty() {
 		parameters = new ICalParameters();
 	}
 
diff --git a/src/main/java/biweekly/util/CaseClasses.java b/src/main/java/biweekly/util/CaseClasses.java
index e69e1027..f21c6e99 100644
--- a/src/main/java/biweekly/util/CaseClasses.java
+++ b/src/main/java/biweekly/util/CaseClasses.java
@@ -51,7 +51,7 @@ public abstract class CaseClasses<T, V> {
 	 * Creates a new case class collection.
 	 * @param clazz the case class
 	 */
-	public CaseClasses(Class<T> clazz) {
+	protected CaseClasses(Class<T> clazz) {
 		this.clazz = clazz;
 	}