diff --git a/configure.ac b/configure.ac
index e93e7f0f..e97713c4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4,9 +4,9 @@ AC_INIT([Apertium Norwegian Bokmål], [1.4.1], [apertiu-stuff@lists.sourceforge.
 AM_INIT_AUTOMAKE
 AC_PROG_AWK
 
-PKG_CHECK_MODULES(APERTIUM, apertium >= 3.6.0)
-PKG_CHECK_MODULES(LTTOOLBOX, lttoolbox >= 3.5.0)
-PKG_CHECK_MODULES(CG3, cg3 >= 1.3.0)
+PKG_CHECK_MODULES(APERTIUM, apertium >= 3.9.4)
+PKG_CHECK_MODULES(LTTOOLBOX, lttoolbox >= 3.7.8)
+PKG_CHECK_MODULES(CG3, cg3 >= 1.4.8)
 
 PKG_CHECK_MODULES(REGTEST, apertium-regtest >= 0.0.1, [],
                   [AC_MSG_WARN([Running tests requires apertium-regtest])])