diff --git a/gauth/gauth.go b/gauth/gauth.go
index 34df302..330790e 100644
--- a/gauth/gauth.go
+++ b/gauth/gauth.go
@@ -5,7 +5,7 @@ package gauth
 import (
 	"time"
 
-	"bitbucket.org/creachadair/otp"
+	"github.com/creachadair/otp"
 )
 
 // IndexNow returns the current 30-second time slice index, and the number of
diff --git a/go.mod b/go.mod
index b0eaf0c..d714e1f 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module github.com/pcarrier/gauth
 go 1.12
 
 require (
-	bitbucket.org/creachadair/otp v0.0.2
+	github.com/creachadair/otp v0.1.0
 	golang.org/x/crypto v0.0.0-20190530122614-20be4c3c3ed5
 	golang.org/x/sys v0.0.0-20190531175056-4c3a928424d2 // indirect
 )
diff --git a/go.sum b/go.sum
index ecd4f93..9a68a85 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,5 @@
-bitbucket.org/creachadair/otp v0.0.2 h1:0IAI6yUiapmEHt/x6sdmv8BnPRVOyWT/mPxqYkcYbF8=
-bitbucket.org/creachadair/otp v0.0.2/go.mod h1:1RXxCIhHl/bxTZlSWONJzpCOi5uHZuwrDAkomlYrUGg=
+github.com/creachadair/otp v0.1.0 h1:JgsbBS3KYbZ7/HE4t5ylRIFRjtDrhzpUHwmpZc03INY=
+github.com/creachadair/otp v0.1.0/go.mod h1:vPuEqgSogZ1vtpF8OeUg28ke/PK2FIo85GZHJz74d0M=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20190530122614-20be4c3c3ed5 h1:8dUaAV7K4uHsF56JQWkprecIQKdPHtR9jCHF5nB8uzc=
 golang.org/x/crypto v0.0.0-20190530122614-20be4c3c3ed5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=