diff --git a/CHANGELOG.md b/CHANGELOG.md
index abef5bd..0e23889 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,7 +13,9 @@
    - Estimate bridge users by country based on requests by country, if
      available, to get more accurate numbers than those obtained from
      unique IP address counts.
-   - Update to metrics-lib 2.11.0 and ExoneraTor 4.4.0.
+   - Update to metrics-lib 2.12.2 and ExoneraTor 4.4.0.
+   - Switch from processing Torperf .tpf to OnionPerf analysis .json
+     files.
 
  * Minor changes
    - Make Jetty host configurable.
diff --git a/build.xml b/build.xml
index d407c33..422f969 100644
--- a/build.xml
+++ b/build.xml
@@ -10,7 +10,7 @@
   <property name="javadoc-title" value="MetricsWeb API Documentation"/>
   <property name="implementation-title" value="metrics-web" />
   <property name="release.version" value="1.3.0-dev" />
-  <property name="metricslibversion" value="2.11.0" />
+  <property name="metricslibversion" value="2.12.2" />
   <property name="exoneratorversion" value="4.4.0" />
   <property name="jetty.version" value="-9.2.21.v20170120" />
   <property name="warfile"
diff --git a/src/main/java/org/torproject/metrics/stats/collectdescs/Main.java b/src/main/java/org/torproject/metrics/stats/collectdescs/Main.java
index ca7a9b3..1679627 100644
--- a/src/main/java/org/torproject/metrics/stats/collectdescs/Main.java
+++ b/src/main/java/org/torproject/metrics/stats/collectdescs/Main.java
@@ -29,7 +29,7 @@ public class Main {
             "/recent/relay-descriptors/extra-infos/",
             "/recent/relay-descriptors/server-descriptors/",
             "/recent/relay-descriptors/votes/",
-            "/recent/torperf/",
+            "/recent/onionperf/",
             "/recent/webstats/"
         }, 0L, org.torproject.metrics.stats.main.Main.descriptorsDir, true);
   }
diff --git a/src/main/java/org/torproject/metrics/stats/onionperf/Main.java b/src/main/java/org/torproject/metrics/stats/onionperf/Main.java
index e1b063c..56a689b 100644
--- a/src/main/java/org/torproject/metrics/stats/onionperf/Main.java
+++ b/src/main/java/org/torproject/metrics/stats/onionperf/Main.java
@@ -97,9 +97,9 @@ public class Main {
     DescriptorReader dr = DescriptorSourceFactory.createDescriptorReader();
     for (Descriptor d : dr.readDescriptors(
         new File(org.torproject.metrics.stats.main.Main.descriptorsDir,
-            "archive/torperf"),
+            "archive/onionperf"),
         new File(org.torproject.metrics.stats.main.Main.descriptorsDir,
-            "recent/torperf"))) {
+            "recent/onionperf"))) {
       if (!(d instanceof TorperfResult)) {
         continue;
       }