diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 82069c3..34a2f8d 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -12,7 +12,7 @@ jobs:
     name: Build
     strategy:
       matrix:
-        go: [1.15, 1.16, 1.17, 1.18, 1.19]
+        go: [1.17, 1.18, 1.19, '1.20']
     runs-on: ubuntu-latest
     steps:
     - name: Set up Go 1.x
@@ -25,7 +25,7 @@ jobs:
       run: go test -race ./...
     - name: Coverage
       run: go test -race -coverprofile=coverage.txt -covermode=atomic ./...
-      if: matrix.go == 1.19 && matrix.os == 'ubuntu-latest'
+      if: matrix.go == 1.20 && matrix.os == 'ubuntu-latest'
     - name: Codecov
       uses: codecov/codecov-action@v1
-      if: matrix.go == 1.19 && matrix.os == 'ubuntu-latest'
+      if: matrix.go == 1.20 && matrix.os == 'ubuntu-latest'
diff --git a/go.mod b/go.mod
index 15cba9a..fb6874a 100644
--- a/go.mod
+++ b/go.mod
@@ -1,12 +1,12 @@
 module github.com/go-rel/sqlite3
 
-go 1.19
+go 1.20
 
 require (
 	github.com/go-rel/rel v0.39.0
-	github.com/go-rel/sql v0.13.1
+	github.com/go-rel/sql v0.14.0
 	github.com/mattn/go-sqlite3 v1.14.17
-	github.com/stretchr/testify v1.8.3
+	github.com/stretchr/testify v1.8.4
 )
 
 require (
diff --git a/go.sum b/go.sum
index 7815142..099d1ce 100644
--- a/go.sum
+++ b/go.sum
@@ -3,8 +3,8 @@ github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSs
 github.com/fsnotify/fsnotify v1.6.0 h1:n+5WquG0fcWoWp6xPWfHdbskMCQaFnG6PfBrh1Ky4HY=
 github.com/go-rel/rel v0.39.0 h1:2zmK8kazM82iRRfWX7+mm1MxDkGKDj2W+xJLjguli5U=
 github.com/go-rel/rel v0.39.0/go.mod h1:yN6+aimHyRIzbuWFe5DaxiZPuVuPfd7GlLpy/YTqTUg=
-github.com/go-rel/sql v0.13.1 h1:Q3G9/QyK4p7AIDNviW0x3JrfdG5LyoLrGH9uoaUtA+o=
-github.com/go-rel/sql v0.13.1/go.mod h1:3t/E+2E/Y9rXURDD7ZMgpFdXLji10gP7gb57HeoaRNY=
+github.com/go-rel/sql v0.14.0 h1:pTg40wvSrOr9cNcm76mHqPe0oRg6CRf92xfH6A3+y/g=
+github.com/go-rel/sql v0.14.0/go.mod h1:gtbpaNkNDNrf9LceaDWhAr6Im+Vd2NgBT93AOOM6UOc=
 github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E=
 github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
 github.com/mattn/go-sqlite3 v1.14.17 h1:mCRHCLDUBXgpKAqIKsaAaAsrAlbkeomtRFKXh2L6YIM=
@@ -17,8 +17,8 @@ github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZN
 github.com/serenize/snaker v0.0.0-20201027110005-a7ad2135616e h1:zWKUYT07mGmVBH+9UgnHXd/ekCK99C8EbDSAt5qsjXE=
 github.com/serenize/snaker v0.0.0-20201027110005-a7ad2135616e/go.mod h1:Yow6lPLSAXx2ifx470yD/nUe22Dv5vBvxK/UK9UUTVs=
 github.com/stretchr/objx v0.5.0 h1:1zr/of2m5FGMsad5YfcqgdqdWrIhu+EBEJRhR1U7z/c=
-github.com/stretchr/testify v1.8.3 h1:RP3t2pwF7cMEbC1dqtB6poj3niw/9gnV4Cjg5oW5gtY=
-github.com/stretchr/testify v1.8.3/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
+github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
+github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 golang.org/x/net v0.1.0 h1:hZ/3BUoy5aId7sCpA/Tc5lt8DkFgdVS2onTpJsZ/fl0=
 golang.org/x/sys v0.1.0 h1:kunALQeHf1/185U1i0GOB/fy1IPRDDpuoOOqRReG57U=
 golang.org/x/text v0.4.0 h1:BrVqGRd7+k1DiOgtnFvAkoQEWQvBc25ouMJM6429SFg=
diff --git a/sqlite3.go b/sqlite3.go
index 9d44f96..6668114 100644
--- a/sqlite3.go
+++ b/sqlite3.go
@@ -1,6 +1,7 @@
 // Package sqlite3 wraps go-sqlite3 driver as an adapter for rel.
 //
 // Usage:
+//
 //	// open sqlite3 connection.
 //	adapter, err := sqlite3.Open("dev.db")
 //	if err != nil {
@@ -35,7 +36,7 @@ func New(database *db.DB) rel.Adapter {
 		deleteBuilder     = builder.Delete{BufferFactory: bufferFactory, Query: queryBuilder, Filter: filterBuilder}
 		ddlBufferFactory  = builder.BufferFactory{InlineValues: true, BoolTrueValue: "1", BoolFalseValue: "0", Quoter: builder.Quote{IDPrefix: "\"", IDSuffix: "\"", IDSuffixEscapeChar: "\"", ValueQuote: "'", ValueQuoteEscapeChar: "'"}}
 		ddlQueryBuilder   = builder.Query{BufferFactory: ddlBufferFactory, Filter: filterBuilder}
-		tableBuilder      = builder.Table{BufferFactory: ddlBufferFactory, ColumnMapper: columnMapper, DefinitionFilter: definitionFilter}
+		tableBuilder      = builder.Table{BufferFactory: ddlBufferFactory, ColumnMapper: columnMapper, DefinitionFilter: definitionFilter, DropKeyMapper: sql.DropKeyMapper}
 		indexBuilder      = builder.Index{BufferFactory: ddlBufferFactory, Query: ddlQueryBuilder, Filter: filterBuilder, SupportFilter: true}
 	)