diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2ab46b3..037e084 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,10 @@
 # Changelog
 
 
+##### 1.6.10 (2018-11-20)
+- Fix: subtle bug in encoding buffer values on update.
+
+
 ##### 1.6.9 (2018-10-13)
 - Fix: do not allow extraneous fields in update to cause silent error.
 
diff --git a/lib/index.js b/lib/index.js
index d70aa25..865e963 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -456,7 +456,7 @@ module.exports = Adapter => class PostgreSQLAdapter extends Adapter {
         const value = update.replace[field]
         index++
         if (Array.isArray(value)) parameters.push(value.map(inputValue))
-        else parameters.push(value)
+        else parameters.push(inputValue(value))
         set.push(`"${field}" = $${index}`)
       }
 
diff --git a/package.json b/package.json
index 3cc2bac..7fabe2b 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "fortune-postgres",
   "description": "Postgres adapter for Fortune.",
-  "version": "1.6.9",
+  "version": "1.6.10",
   "license": "MIT",
   "repository": {
     "type": "git",