diff --git a/src/main/java/org/springframework/data/projection/ProxyProjectionFactory.java b/src/main/java/org/springframework/data/projection/ProxyProjectionFactory.java
index efe95a330..3f53729dd 100644
--- a/src/main/java/org/springframework/data/projection/ProxyProjectionFactory.java
+++ b/src/main/java/org/springframework/data/projection/ProxyProjectionFactory.java
@@ -41,6 +41,7 @@ import org.springframework.util.ConcurrentReferenceHashMap;
  *
  * @author Oliver Gierke
  * @author Christoph Strobl
+ * @author Mark Paluch
  * @see SpelAwareProxyProjectionFactory
  * @since 1.10
  */
@@ -60,7 +61,7 @@ class ProxyProjectionFactory implements ProjectionFactory, BeanClassLoaderAware
 		this.factories.add(MapAccessingMethodInterceptorFactory.INSTANCE);
 		this.factories.add(PropertyAccessingMethodInvokerFactory.INSTANCE);
 
-		this.conversionService = new DefaultConversionService();
+		this.conversionService = DefaultConversionService.getSharedInstance();
 	}
 
 	/*
diff --git a/src/main/java/org/springframework/data/repository/query/ResultProcessor.java b/src/main/java/org/springframework/data/repository/query/ResultProcessor.java
index 3fd0b56d3..3127bf490 100644
--- a/src/main/java/org/springframework/data/repository/query/ResultProcessor.java
+++ b/src/main/java/org/springframework/data/repository/query/ResultProcessor.java
@@ -260,7 +260,7 @@ public class ResultProcessor {
 		 * @param factory must not be {@literal null}.
 		 */
 		ProjectingConverter(ReturnedType type, ProjectionFactory factory) {
-			this(type, factory, new DefaultConversionService());
+			this(type, factory, DefaultConversionService.getSharedInstance());
 		}
 
 		/**