diff --git a/release-notes/CREDITS-2.x b/release-notes/CREDITS-2.x
index 2e3e1a66..59dea51e 100644
--- a/release-notes/CREDITS-2.x
+++ b/release-notes/CREDITS-2.x
@@ -102,3 +102,11 @@ Jason van Zyl (jvanzyl@github)
 Jochen Schalanda (joschi@github)
 * Reported #187: Update to SnakeYAML to 1.26 (from 1.24) to address CVE-2017-18640
  (2.10.4)
+
+Sergey Medelyan (smedelyan@github)
+* Reported #146: Jackson can't handle underscores in numbers
+ (2.10.5)
+
+Conor Ward (conor-ward@github)
+* Contributed fix for #146: Jackson can't handle underscores in numbers
+ (2.10.5)
diff --git a/release-notes/VERSION-2.x b/release-notes/VERSION-2.x
index b2c89ba0..a9de9442 100644
--- a/release-notes/VERSION-2.x
+++ b/release-notes/VERSION-2.x
@@ -8,6 +8,11 @@ Modules:
 === Releases ===
 ------------------------------------------------------------------------
 
+2.10.5 (not yet released)
+
+#146: Jackson can't handle underscores in numbers
+ (reported by Sergey M; fix contributed by Conor W)
+
 2.10.4 (03-May-2020)
 
 #179 (properties): `JavaPropsMapper` doesn't close the .properties file
diff --git a/yaml/src/main/java/com/fasterxml/jackson/dataformat/yaml/YAMLParser.java b/yaml/src/main/java/com/fasterxml/jackson/dataformat/yaml/YAMLParser.java
index 2b67f9d6..816ce5fb 100644
--- a/yaml/src/main/java/com/fasterxml/jackson/dataformat/yaml/YAMLParser.java
+++ b/yaml/src/main/java/com/fasterxml/jackson/dataformat/yaml/YAMLParser.java
@@ -885,7 +885,7 @@ public String getTypeId() throws IOException
      */
     
     /**
-     * Helper method used to clean up YAML floating-point value so it can be parsed
+     * Helper method used to clean up YAML integer value so it can be parsed
      * using standard JDK classes.
      * Currently this just means stripping out optional underscores.
      */
diff --git a/yaml/src/test/java/com/fasterxml/jackson/dataformat/yaml/deser/ParserAutoCloseTest.java b/yaml/src/test/java/com/fasterxml/jackson/dataformat/yaml/deser/ParserAutoCloseTest.java
index 0aa25767..f48a0223 100644
--- a/yaml/src/test/java/com/fasterxml/jackson/dataformat/yaml/deser/ParserAutoCloseTest.java
+++ b/yaml/src/test/java/com/fasterxml/jackson/dataformat/yaml/deser/ParserAutoCloseTest.java
@@ -13,43 +13,37 @@
 @SuppressWarnings("resource")
 public class ParserAutoCloseTest extends ModuleTestBase
 {
+    private final ObjectMapper YAML_MAPPER = newObjectMapper();
+
     public void testParseReaderWithAutoClose() throws IOException {
-        ObjectMapper yamlMapper = newObjectMapper();
 
         CloseTrackerReader reader = new CloseTrackerReader("foo:bar");
-        yamlMapper.readTree(reader);
+        YAML_MAPPER.readTree(reader);
 
         Assert.assertEquals(true, reader.isClosed());
     }
 
     public void testParseStreamWithAutoClose() throws IOException {
-        ObjectMapper yamlMapper = newObjectMapper();
-
         CloseTrackerOutputStream stream = new CloseTrackerOutputStream("foo:bar");
-        yamlMapper.readTree(stream);
+        YAML_MAPPER.readTree(stream);
 
         Assert.assertEquals(true, stream.isClosed());
     }
 
-    @SuppressWarnings("deprecation")
     public void testParseReaderWithoutAutoClose() throws IOException {
-        ObjectMapper yamlMapper = newObjectMapper()
-                .disable(JsonParser.Feature.AUTO_CLOSE_SOURCE);
-
         CloseTrackerReader reader = new CloseTrackerReader("foo:bar");
-        yamlMapper.readTree(reader);
+        YAML_MAPPER.reader()
+            .without(JsonParser.Feature.AUTO_CLOSE_SOURCE)
+            .readTree(reader);
 
         Assert.assertEquals(false, reader.isClosed());
     }
 
-
-    @SuppressWarnings("deprecation")
     public void testParseStreamWithoutAutoClose() throws IOException {
-        ObjectMapper yamlMapper = newObjectMapper()
-                .disable(JsonParser.Feature.AUTO_CLOSE_SOURCE);
-
         CloseTrackerOutputStream stream = new CloseTrackerOutputStream("foo:bar");
-        yamlMapper.readTree(stream);
+        YAML_MAPPER.reader()
+            .without(JsonParser.Feature.AUTO_CLOSE_SOURCE)
+            .readTree(stream);
 
         Assert.assertEquals(false, stream.isClosed());
     }
@@ -72,7 +66,6 @@ public boolean isClosed() {
         }
     }
 
-
     public static class CloseTrackerOutputStream extends ByteArrayInputStream {
         private boolean closed;
 
diff --git a/yaml/src/test/java/com/fasterxml/jackson/dataformat/yaml/deser/StreamingParseTest.java b/yaml/src/test/java/com/fasterxml/jackson/dataformat/yaml/deser/StreamingParseTest.java
index bff2ce9c..4f56f1c8 100644
--- a/yaml/src/test/java/com/fasterxml/jackson/dataformat/yaml/deser/StreamingParseTest.java
+++ b/yaml/src/test/java/com/fasterxml/jackson/dataformat/yaml/deser/StreamingParseTest.java
@@ -1,22 +1,22 @@
 package com.fasterxml.jackson.dataformat.yaml.deser;
 
+import java.io.StringWriter;
+import java.math.BigInteger;
+
 import com.fasterxml.jackson.core.JsonParser;
 import com.fasterxml.jackson.core.JsonToken;
-import com.fasterxml.jackson.databind.ObjectMapper;
+
 import com.fasterxml.jackson.dataformat.yaml.ModuleTestBase;
 import com.fasterxml.jackson.dataformat.yaml.YAMLFactory;
 import com.fasterxml.jackson.dataformat.yaml.YAMLParser;
 
-import java.io.StringWriter;
-import java.math.BigInteger;
-
 /**
  * Unit tests for checking functioning of the underlying
  * parser implementation.
  */
 public class StreamingParseTest extends ModuleTestBase
 {
-    final YAMLFactory YAML_F = new YAMLFactory();
+    private final YAMLFactory YAML_F = new YAMLFactory();
 
     public void testBasic() throws Exception
     {
@@ -300,16 +300,19 @@ public void testIntParsingUnderscoresSm() throws Exception
         p.close();
     }
 
+    // for [dataformats-text#146]
     public void testYamlLongWithUnderscores() throws Exception
     {
-        ObjectMapper mapper = new ObjectMapper(new YAMLFactory());
-        LongHolder longHolder = mapper.readValue("v: 1_000_000", LongHolder.class);
-        assertNotNull(longHolder);
-        assertEquals(LongHolder.class, longHolder.getClass());
-        assertEquals(Long.valueOf(1000000), longHolder.getV());
+        try (JsonParser p = YAML_F.createParser("v: 1_000_000")) {
+            assertToken(JsonToken.START_OBJECT, p.nextToken());
+            assertToken(JsonToken.FIELD_NAME, p.nextToken());
+            assertEquals("v", p.currentName());
+            assertToken(JsonToken.VALUE_NUMBER_INT, p.nextToken());
+            assertEquals(1000000, p.getIntValue());
+        }
     }
 
-    // [cbor#4]: accidental recognition as double, with multiple dots
+    // accidental recognition as double, with multiple dots
     public void testDoubleParsing() throws Exception
     {
         // First, test out valid use case.
@@ -581,19 +584,4 @@ public void testTimeLikeValues() throws Exception
           assertNull(p.nextToken());
           p.close();
     }
-
-    static class LongHolder
-    {
-        private Long v;
-
-        public Long getV()
-        {
-            return v;
-        }
-
-        public void setV(Long v)
-        {
-            this.v = v;
-        }
-    }
 }