diff --git a/CHANGES.md b/CHANGES.md
index f5e6716997efc1f503c2ea340092b578e97dc9b4..9c104ee88107d13cc1f4fb7c4a9fa48a2d62ae2c 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,4 +1,6 @@
 # ChangeLog
+## version 1.6.3 - 2018-11-08
+- fix for conda and DTK_INSTALL_PREFIX
 ## version 1.6.2 - 2018-11-08
 - dtkScriptInterpreterPython enables release method (for real).
 ## version 1.6.1 - 2018-11-08
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1598ee750838ed1a51cd1f791300eb6522dfb7c4..cc3fb849da112adc5ea41bf034efca96928ee8dd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -24,7 +24,7 @@ project(dtk)
 
 set(dtk_VERSION_MAJOR 1)
 set(dtk_VERSION_MINOR 6)
-set(dtk_VERSION_PATCH 2)
+set(dtk_VERSION_PATCH 3)
 set(dtk_VERSION
   ${dtk_VERSION_MAJOR}.${dtk_VERSION_MINOR}.${dtk_VERSION_PATCH})
 
diff --git a/app/dtkComposerEvaluator/main.cpp b/app/dtkComposerEvaluator/main.cpp
index beee60bf3e1bfd39199fbc778f40674f59d1b32b..937cc7c80c88970afdf9d7e62d0773dc6cbbd302 100644
--- a/app/dtkComposerEvaluator/main.cpp
+++ b/app/dtkComposerEvaluator/main.cpp
@@ -28,7 +28,7 @@ int main(int argc, char **argv)
     dtkDistributedGuiApplication *application = dtkDistributedGuiApplication::create(argc, argv);
 
     application->setApplicationName("dtkComposerEvaluator");
-    application->setApplicationVersion("1.5.1");
+    application->setApplicationVersion("1.6.3");
     application->setOrganizationName("inria");
     application->setOrganizationDomain("fr");
     bool no_gui = application->noGui();
diff --git a/app/dtkDistributedServer/main.cpp b/app/dtkDistributedServer/main.cpp
index 3971ed7d6f15e5c60a042007990eb1d5992136c7..aba2d14125d8da94a647d9ed1376a32e8481aaed 100644
--- a/app/dtkDistributedServer/main.cpp
+++ b/app/dtkDistributedServer/main.cpp
@@ -23,7 +23,7 @@ int main(int argc, char **argv)
 {
     dtkCoreApplication *application = dtkCoreApplication::create(argc, argv);
     application->setApplicationName("dtkDistributedServer");
-    application->setApplicationVersion("1.5.1");
+    application->setApplicationVersion("1.6.3");
     application->setOrganizationName("inria");
     application->setOrganizationDomain("fr");