diff --git a/science/wannier90/Portfile b/science/wannier90/Portfile
index 94bbb3ac10fde..8c8522010eef9 100644
--- a/science/wannier90/Portfile
+++ b/science/wannier90/Portfile
@@ -5,7 +5,8 @@ PortGroup           compilers 1.0
 PortGroup           linear_algebra 1.0
 
 name                wannier90
-version             3.0.0
+version             3.1.0
+revision            0
 categories          science
 platforms           darwin
 license             GPL-2+
@@ -21,10 +22,10 @@ long_description    Wannier90 uses inputs from an electronic-structure code \
 homepage            http://www.wannier.org
 master_sites        https://github.com/wannier-developers/wannier90/archive
 
-checksums           rmd160  cf937b9854e64ea545fe81ce063a02689aefa8de \
-                    sha1    233773801b170d46200004dd1c0db8cdf7003ddd \
-                    sha256  f196e441dcd7b67159a1d09d2d7de2893b011a9f03aab6b30c4703ecbf20fe5b \
-                    size    71943515
+checksums           rmd160  d9d1117c3ccc4dde4e5b4181ef230e84edd8e18c \
+                    sha1    1d4447775e245f43967ab8a37ba475c2f1547936 \
+                    sha256  40651a9832eb93dec20a8360dd535262c261c34e13c41b6755fa6915c936b254 \
+                    size    101211573
 
 distname            v${version}
 worksrcdir          ${name}-${version}
@@ -59,12 +60,39 @@ compilers.choose    f90
 compilers.setup     require_fortran
 
 variant threads requires atlas description {Build with threaded ATLAS} {}
-# test fails with tiny discrepancies:
-# tests/testw90_example26 - gaas.win: **FAILED**
+# test fails with small discrepancies:
+#tests/testpostw90_fe_kpathcurv - Fe.win: **FAILED**.
+#bandcurvz
+#    ERROR: relative error 1.24e+02 greater than 1.00e+02. (Test: 5.9210191e-20.  Benchmark: 4.7482879e-22.)
+#tests/testpostw90_fe_kpathmorbcurv - Fe.win: Passed.
+#tests/testpostw90_fe_kslicecurv - Fe.win: **FAILED**.
+#bandcurvz
+#    ERROR: relative error 1.24e+02 greater than 1.00e+02. (Test: 5.9210191e-20.  Benchmark: 4.7482879e-22.)
+#bandcurvz
+#    ERROR: relative error 1.18e+02 greater than 1.00e+02. (Test: 5.8410051e-20.  Benchmark: 4.914996e-22.)
+#tests/testw90_example26 - gaas.win: **FAILED**.
+#final_spreads
+#    ERROR: absolute error 3.53e-06 greater than 3.00e-06. (Test: 2.7477301.  Benchmark: 2.74772657.)
+#final_spreads
+#    ERROR: absolute error 3.53e-06 greater than 3.00e-06. (Test: 2.7477301.  Benchmark: 2.74772657.)
+#final_spreads
+#    ERROR: absolute error 3.53e-06 greater than 3.00e-06. (Test: 2.7477301.  Benchmark: 2.74772657.)
+#omegaRest
+#    ERROR: absolute error 1.06e-05 greater than 1.00e-05. (Test: 11.511365424.  Benchmark: 11.511354835.)
 
 test.run            yes
 test.target         test-serial
 
+# without threads small discrepancies for
+#tests/testw90_example03 - silicon.win: **FAILED**.
+#final_spreads
+#    ERROR: absolute error 3.37e-06 greater than 3.00e-06. (Test: 1.81247943.  Benchmark: 1.81247606.)
+#tests/testpostw90_pt_kpathbandsshc - Pt.win: **FAILED**.
+#shc
+#    ERROR: absolute error 1.11e-02 greater than 1.00e-02. (Test: -2.415645.  Benchmark: -2.4267646.)
+#shc
+#    ERROR: absolute error 1.11e-02 greater than 1.00e-02. (Test: -2.9992466.  Benchmark: -2.9881258.)
+
 livecheck.type      regex
 livecheck.url       ${homepage}/download
 livecheck.regex     Wannier90 \\(v(\[0-9.\]+)\\)