diff --git a/pgloader.1 b/pgloader.1
index 456f42e..0ac7c0b 100644
--- a/pgloader.1
+++ b/pgloader.1
@@ -2400,6 +2400,9 @@ Numbers:
 type tinyint to smallint
 .
 .IP "\(bu" 4
+type integer to bigint
+.
+.IP "\(bu" 4
 type float to float using float\-to\-string
 .
 .IP "\(bu" 4
diff --git a/pgloader.1.md b/pgloader.1.md
index 6f9ba4d..ba722fd 100644
--- a/pgloader.1.md
+++ b/pgloader.1.md
@@ -1960,6 +1960,7 @@ When migrating from SQLite the following Casting Rules are provided:
 Numbers:
 
   - type tinyint to smallint
+  - type integer to bigint
 
   - type float to float   using float-to-string
   - type real to real     using float-to-string
diff --git a/src/sources/sqlite/sqlite-cast-rules.lisp b/src/sources/sqlite/sqlite-cast-rules.lisp
index 4a154e5..fef19b8 100644
--- a/src/sources/sqlite/sqlite-cast-rules.lisp
+++ b/src/sources/sqlite/sqlite-cast-rules.lisp
@@ -16,6 +16,7 @@
     (:source (:type "clob")      :target (:type "text" :drop-typemod t))
 
     (:source (:type "tinyint") :target (:type "smallint"))
+    (:source (:type "integer") :target (:type "bigint"))
 
     (:source (:type "float") :target (:type "float")
              :using pgloader.transforms::float-to-string)