diff --git a/macOS/deps/versions.mk b/macOS/deps/versions.mk
index 0c11b6b2cb62118318fa60870239f958abb11455..b13cc880e9b4453b24d73310b838e7ce082e2c70 100644
--- a/macOS/deps/versions.mk
+++ b/macOS/deps/versions.mk
@@ -1,2 +1,2 @@
 SLICOT_VERSION = 5.0+20101122
-X13AS_VERSION = 1-1-b58
+X13AS_VERSION = 1-1-b59
diff --git a/windows/deps/versions.mk b/windows/deps/versions.mk
index 5d865cd6188377059f1792a14c1905dd191c6ffc..609539138239cd28555941b4992bb6724fee1a27 100644
--- a/windows/deps/versions.mk
+++ b/windows/deps/versions.mk
@@ -1,5 +1,5 @@
 SLICOT_VERSION = 5.0+20101122
-X13AS_VERSION = 1-1-b58
+X13AS_VERSION = 1-1-b59
 
 OCTAVE_VERSION = 6.4.0
 OCTAVE_W64_BUILD =