diff --git a/CHANGES.txt b/CHANGES.txt
index ec958d4737..d4729a2fba 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -2,6 +2,7 @@
  * Avoid index segment stitching in RAM which lead to OOM on big SSTable files (CASSANDRA-11383)
  * Fix clustering and row filters for LIKE queries on clustering columns (CASSANDRA-11397)
 Merged from 3.0:
+ * Upgrade ohc to 0.4.3
  * Enable SO_REUSEADDR for JMX RMI server sockets (CASSANDRA-11093)
  * Allocate merkletrees with the correct size (CASSANDRA-11390)
  * Support streaming pre-3.0 sstables (CASSANDRA-10990)
diff --git a/build.xml b/build.xml
index 264a0bef86..2caa203cc1 100644
--- a/build.xml
+++ b/build.xml
@@ -412,8 +412,8 @@
           <dependency groupId="com.clearspring.analytics" artifactId="stream" version="2.5.2" />
           <dependency groupId="com.datastax.cassandra" artifactId="cassandra-driver-core" version="3.0.0" classifier="shaded" />
           <dependency groupId="org.eclipse.jdt.core.compiler" artifactId="ecj" version="4.4.2" />
-          <dependency groupId="org.caffinitas.ohc" artifactId="ohc-core" version="0.4.2" />
-          <dependency groupId="org.caffinitas.ohc" artifactId="ohc-core-j8" version="0.4.2" />
+          <dependency groupId="org.caffinitas.ohc" artifactId="ohc-core" version="0.4.3" />
+          <dependency groupId="org.caffinitas.ohc" artifactId="ohc-core-j8" version="0.4.3" />
           <dependency groupId="net.ju-n.compile-command-annotations" artifactId="compile-command-annotations" version="1.2.0" />
           <dependency groupId="org.fusesource" artifactId="sigar" version="1.6.4">
           	<exclusion groupId="log4j" artifactId="log4j"/>
@@ -470,8 +470,8 @@
         <dependency groupId="org.antlr" artifactId="antlr"/>
         <dependency groupId="com.datastax.cassandra" artifactId="cassandra-driver-core" classifier="shaded"/>
         <dependency groupId="org.eclipse.jdt.core.compiler" artifactId="ecj"/>
-        <dependency groupId="org.caffinitas.ohc" artifactId="ohc-core" version="0.4.2" />
-        <dependency groupId="org.caffinitas.ohc" artifactId="ohc-core-j8" version="0.4.2" />
+        <dependency groupId="org.caffinitas.ohc" artifactId="ohc-core" version="0.4.3" />
+        <dependency groupId="org.caffinitas.ohc" artifactId="ohc-core-j8" version="0.4.3" />
         <dependency groupId="org.openjdk.jmh" artifactId="jmh-core"/>
         <dependency groupId="org.openjdk.jmh" artifactId="jmh-generator-annprocess"/>
         <dependency groupId="net.ju-n.compile-command-annotations" artifactId="compile-command-annotations"/>
diff --git a/lib/ohc-core-0.4.2.jar b/lib/ohc-core-0.4.2.jar
deleted file mode 100644
index 019adcd3f8..0000000000
Binary files a/lib/ohc-core-0.4.2.jar and /dev/null differ
diff --git a/lib/ohc-core-0.4.3.jar b/lib/ohc-core-0.4.3.jar
new file mode 100644
index 0000000000..2f75a9d3e2
Binary files /dev/null and b/lib/ohc-core-0.4.3.jar differ
diff --git a/lib/ohc-core-j8-0.4.2.jar b/lib/ohc-core-j8-0.4.2.jar
deleted file mode 100644
index 583f4aaaff..0000000000
Binary files a/lib/ohc-core-j8-0.4.2.jar and /dev/null differ
diff --git a/lib/ohc-core-j8-0.4.3.jar b/lib/ohc-core-j8-0.4.3.jar
new file mode 100644
index 0000000000..7f2007ef39
Binary files /dev/null and b/lib/ohc-core-j8-0.4.3.jar differ