diff --git a/build.sbt b/build.sbt
index ddd3c0a82acbdc5bb4f52cdd2f9ec27cc9174ecc..ac8fae6e26388bed7539772c669bce9379668eb7 100644
--- a/build.sbt
+++ b/build.sbt
@@ -143,7 +143,7 @@ def ghProject(repo: String, version: String) = RootProject(uri(s"${repo}#${versi
 
 lazy val bonsai      = ghProject("git://github.com/colder/bonsai.git",     "0fec9f97f4220fa94b1f3f305f2e8b76a3cd1539")
 
-lazy val scalaSmtLib = ghProject("git://github.com/regb/scala-smtlib.git", "204018c3f413fc8191c99ae9ccc4806912e02a83")
+lazy val scalaSmtLib = ghProject("git://github.com/regb/scala-smtlib.git", "3b6ef4992b6af15d08a7320fd12202f35e97b905")
 
 lazy val root = (project in file(".")).
   configs(RegressionTest, IsabelleTest, IntegrTest).