diff --git a/arb.h b/arb.h
index f937e9a0..be5bf85f 100644
--- a/arb.h
+++ b/arb.h
@@ -28,8 +28,8 @@ extern "C" {
 
 #define __ARB_VERSION 2
 #define __ARB_VERSION_MINOR 22
-#define __ARB_VERSION_PATCHLEVEL 0
-#define ARB_VERSION "2.22.0"
+#define __ARB_VERSION_PATCHLEVEL 1
+#define ARB_VERSION "2.22.1"
 #define __ARB_RELEASE (__ARB_VERSION * 10000 + \
                          __ARB_VERSION_MINOR * 100 + \
                          __ARB_VERSION_PATCHLEVEL)
diff --git a/arb/version.c b/arb/version.c
index ac001d7e..9bc56026 100644
--- a/arb/version.c
+++ b/arb/version.c
@@ -11,4 +11,4 @@
 
 #include "arb.h"
 
-const char * arb_version = "2.22.0";
+const char * arb_version = "2.22.1";
diff --git a/configure b/configure
index 17f704e5..ec47c28d 100755
--- a/configure
+++ b/configure
@@ -11,7 +11,7 @@
 # 2.7.0   => 0.0.0
 ARB_MAJOR=2
 ARB_MINOR=13
-ARB_PATCH=0
+ARB_PATCH=1
 
 PREFIX="/usr/local"
 GMP_DIR="/usr/local"
diff --git a/doc/source/history.rst b/doc/source/history.rst
index 73ac4ba4..0bd9b762 100644
--- a/doc/source/history.rst
+++ b/doc/source/history.rst
@@ -36,6 +36,14 @@ Old versions of the documentation
 * http://arblib.org/arb-2.4.0.pdf
 * http://arblib.org/arb-2.3.0.pdf
 
+2022-01-25 -- version 2.22.1
+-------------------------------------------------------------------------------
+
+* Fixed bugs causing some hypergeometric functions hang or crash for
+  some input on various non-x86 architectures.
+* Fixed a minor bug in acb_hypgeom_m (NaN result sometimes only set the
+  real part to NaN).
+
 2022-01-15 -- version 2.22.0
 -------------------------------------------------------------------------------