diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,7 @@
+## 0.4.9
+
+* Additional tuple instances of QueryParams (https://github.com/paul-rouse/mysql-simple/pull/57)
+
 ## 0.4.8.1
 
 * Allow build on ghc 8.4.x (https://github.com/paul-rouse/mysql-simple/pull/56)
diff --git a/Database/MySQL/Simple/QueryParams.hs b/Database/MySQL/Simple/QueryParams.hs
--- a/Database/MySQL/Simple/QueryParams.hs
+++ b/Database/MySQL/Simple/QueryParams.hs
@@ -155,6 +155,24 @@
 
 instance (Param a, Param b, Param c, Param d, Param e, Param f, Param g,
           Param h, Param i, Param j, Param k, Param l, Param m, Param n,
+          Param o, Param p, Param q, Param r, Param s, Param t)
+    => QueryParams (a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t) where
+    renderParams (a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t) =
+        [render a, render b, render c, render d, render e, render f, render g,
+         render h, render i, render j, render k, render l, render m, render n,
+         render o, render p, render q, render r, render s, render t]
+
+instance (Param a, Param b, Param c, Param d, Param e, Param f, Param g,
+          Param h, Param i, Param j, Param k, Param l, Param m, Param n,
+          Param o, Param p, Param q, Param r, Param s, Param t, Param u)
+    => QueryParams (a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u) where
+    renderParams (a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u) =
+        [render a, render b, render c, render d, render e, render f, render g,
+         render h, render i, render j, render k, render l, render m, render n,
+         render o, render p, render q, render r, render s, render t, render u]
+
+instance (Param a, Param b, Param c, Param d, Param e, Param f, Param g,
+          Param h, Param i, Param j, Param k, Param l, Param m, Param n,
           Param o, Param p, Param q, Param r, Param s, Param t, Param u,
           Param v)
     => QueryParams (a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v) where
diff --git a/mysql-simple.cabal b/mysql-simple.cabal
--- a/mysql-simple.cabal
+++ b/mysql-simple.cabal
@@ -1,5 +1,5 @@
 name:           mysql-simple
-version:        0.4.8.1
+version:        0.4.9
 homepage:       https://github.com/paul-rouse/mysql-simple
 bug-reports:    https://github.com/paul-rouse/mysql-simple/issues
 synopsis:       A mid-level MySQL client library.