diff --git a/tox.ini b/tox.ini
index 16928387..3438796a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -2,7 +2,7 @@
 envlist =
     py{310,311,312,313,314}-test{,-all}{,-dev,-latest,-oldest}{,-cov}
     py{310,311,312,313,314}-test-numpy{121,122,123,124,125,126,20,21,22,23,24}
-    py{310,311,312,313,314}-test-scipy{18,19,110,111,112,113,114,115,116,117}
+    py{310,311,312,313,314}-test-scipy{18,19,110,111,112,113,114,115,116,117,118}
     py{310,311,312,313,314}-test-astropy{50,51,52,53,60,61,70,71,72,80}
     build_docs
     linkcheck
@@ -57,6 +57,7 @@ description =
     scipy115: with scipy 1.15.*
     scipy116: with scipy 1.16.*
     scipy117: with scipy 1.17.*
+    scipy118: with scipy 1.18.*
     astropy50: with astropy 5.0.*
     astropy51: with astropy 5.1.*
     astropy52: with astropy 5.2.*
@@ -93,6 +94,7 @@ deps =
     scipy115: scipy==1.15.*
     scipy116: scipy==1.16.*
     scipy117: scipy==1.17.*
+    scipy118: scipy==1.18.*
 
     astropy50: astropy==5.0.*
     astropy51: astropy==5.1.*
@@ -111,7 +113,7 @@ deps =
 
     latest: astropy==8.0.*
     latest: numpy==2.4.*
-    latest: scipy==1.17.*
+    latest: scipy==1.18.*
 
     oldest: astropy==5.0.*
     oldest: numpy==1.21.*