diff --git a/tox.ini b/tox.ini
index d4c4b724..69548e3e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -2,7 +2,7 @@
 envlist =
     py{37,38,39,310}-test{,-all}{,-dev,-latest,-oldest}{,-cov}
     py{37,38,39,310}-test-numpy{116,117,118,119,120,121,122}
-    py{37,38,39,310}-test-scipy{12,13,14,15,16,17}
+    py{37,38,39,310}-test-scipy{12,13,14,15,16,17,18}
     py{37,38,39,310}-test-astropy{40,41,42,43,50}
     build_docs
     linkcheck
@@ -49,6 +49,7 @@ description =
     scipy15: with scipy 1.5.*
     scipy16: with scipy 1.6.*
     scipy17: with scipy 1.7.*
+    scipy18: with scipy 1.8.*
     astropy40: with astropy 4.0.*
     astropy41: with astropy 4.1.*
     astropy42: with astropy 4.2.*
@@ -72,6 +73,7 @@ deps =
     scipy15: scipy==1.5.*
     scipy16: scipy==1.6.*
     scipy17: scipy==1.7.*
+    scipy18: scipy==1.8.*
 
     astropy40: astropy==4.0.*
     astropy41: astropy==4.1.*
@@ -85,7 +87,7 @@ deps =
 
     latest: astropy==5.0.*
     latest: numpy==1.22.*
-    latest: scipy==1.7.*
+    latest: scipy==1.8.*
 
     oldest: astropy==4.0.*
     oldest: numpy==1.16.*