diff --git a/.SRCINFO b/.SRCINFO
index a4bcfa4acef9b..10253c86d2002 100644
--- a/.SRCINFO
+++ b/.SRCINFO
@@ -1,12 +1,13 @@
 pkgbase = s3ql
 	pkgdesc = A full-featured file system for online data storage.
-	pkgver = 3.8.0
+	pkgver = 3.8.1
 	pkgrel = 1
 	url = https://github.com/s3ql/s3ql/
 	install = s3ql.install
 	changelog = CHANGELOG
 	arch = x86_64
 	license = GPL3
+	makedepends = python-setuptools
 	depends = python-cryptography
 	depends = python-defusedxml
 	depends = python-apsw
@@ -17,10 +18,10 @@ pkgbase = s3ql
 	depends = python-requests
 	depends = python-google-auth
 	depends = python-google-auth-oauthlib
-	source = s3ql-3.8.0.tar.gz::https://github.com/s3ql/s3ql//releases/download/release-3.8.0/s3ql-3.8.0.tar.gz
-	source = s3ql-3.8.0.tar.gz.asc::https://github.com/s3ql/s3ql//releases/download/release-3.8.0/s3ql-3.8.0.tar.gz.asc
+	source = s3ql-3.8.1.tar.gz::https://github.com/s3ql/s3ql//releases/download/release-3.8.1/s3ql-3.8.1.tar.gz
+	source = s3ql-3.8.1.tar.gz.asc::https://github.com/s3ql/s3ql//releases/download/release-3.8.1/s3ql-3.8.1.tar.gz.asc
 	validpgpkeys = ED31791B2C5C1613AF388B8AD113FCAC3C4E599F
-	sha256sums = bc5e05b6d929c0cde12b9966f426d7eae20d6f6137aa9291dec8873154b49631
+	sha256sums = d4731ebaacadca38a677bb18a99446c19d4f5b573628d55371f715acace11c4c
 	sha256sums = SKIP
 
 pkgname = s3ql
diff --git a/CHANGELOG b/CHANGELOG
index 883ec344a43dc..c4a24e718dfe4 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,24 @@
+2022-01-10, S3QL 3.8.1
+
+  * Update fsck.s3ql to remove empty direcrtories from local backend's storage
+    directory.  As blocks are added subdirectories are created
+    on demand so there are not too many blocks in each directory, but as blocks
+    are removed from storage empty directories are not automatically removed.
+    The number of empty directories can become quite large over
+    time, slowing down mount.s3ql a little and fsck.s3ql considerably.
+
+  * Fix for fsck.s3ql removing .tmp files in cache directory.
+
+  * Fix bug that would cause incorrect size to be recorded for a block
+    if the file had zero-bytes added to the end by using truncate followed
+    by close.  (The recorded size does not count the zero bytes.)  Both rsync's
+    -S (sparse) option and VirtualBox do this for example. No data corruption,
+    but contrib/fixup_block_sizes.py should be run to fix this.
+
+  * contrib/fix_block_sizes.py updated to check all block sizes, not just
+    ones with size multiple of 512, so it detects blocks affected by the above
+    bug.
+
 2021-11-07, S3QL 3.8.0
 
   * The way to build the documentation has changed. Instead of running
diff --git a/PKGBUILD b/PKGBUILD
index 78781d0b75865..ddc3710a52824 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -4,7 +4,7 @@
 # Contributor: Brendan MacDonell <macdonellba at gmail dot com>
 
 pkgname=s3ql
-pkgver=3.8.0
+pkgver=3.8.1
 pkgrel=1
 pkgdesc="A full-featured file system for online data storage."
 arch=('x86_64')
@@ -21,12 +21,13 @@ depends=(
 	'python-requests'
 	'python-google-auth'
 	'python-google-auth-oauthlib')
+makedepends=('python-setuptools')
 install=s3ql.install
 changelog=CHANGELOG
 source=(
 	"$pkgname-$pkgver.tar.gz::$url/releases/download/release-$pkgver/$pkgname-$pkgver.tar.gz"
 	"$pkgname-$pkgver.tar.gz.asc::$url/releases/download/release-$pkgver/$pkgname-$pkgver.tar.gz.asc")
-sha256sums=('bc5e05b6d929c0cde12b9966f426d7eae20d6f6137aa9291dec8873154b49631'
+sha256sums=('d4731ebaacadca38a677bb18a99446c19d4f5b573628d55371f715acace11c4c'
             'SKIP')
 validpgpkeys=('ED31791B2C5C1613AF388B8AD113FCAC3C4E599F') # Nikolaus Rath