Index: src/opentime/CMakeLists.txt
--- src/opentime/CMakeLists.txt.orig
+++ src/opentime/CMakeLists.txt
@@ -22,7 +22,9 @@ set_target_properties(opentime PROPERTIES 
     DEBUG_POSTFIX "${OTIO_DEBUG_POSTFIX}"
     LIBRARY_OUTPUT_NAME "opentime"
     POSITION_INDEPENDENT_CODE TRUE
-    WINDOWS_EXPORT_ALL_SYMBOLS true)
+    WINDOWS_EXPORT_ALL_SYMBOLS true
+    VERSION ${OTIO_VERSION_MAJOR}.${OTIO_VERSION_MINOR}
+    SOVERSION ${OTIO_VERSION_MAJOR})
 
 if(APPLE)
     set_target_properties(opentime PROPERTIES 
