diff --git a/tox.ini b/tox.ini
index b0c9e4e..87dc47b 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,17 +1,19 @@
 [tox]
 isolated_build=True
 envlist=
-    py38-pip{242,2412,2411,241,241b2,241b1,2400,2332,2331,233,2321,232,2312,2311,231,2301,230,2231,223,2222,2221,222,2212,2211,221,2204,2203,2202,2201,220,2131,213,2124,2123,2122,2121,212,2113,2112,2111,211,2101,210,2034,2033,2031,203,2024,2023,2022,2021,202,201,2002,2001,1931},
-    py39-pip{242,2412,2411,241,241b2,241b1,2400,2332,2331,233,2321,232,2312,2311,231,2301,230,2231,223,2222,2221,222,2212,2211,221,2204,2203,2202,2201,220,2131,213,2124,2123,2122,2121,212,2113,2112,2111,211,2101,210,2034,2033,2031,203},
-    py310-pip{242,2412,2411,241,241b2,241b1,2400,2332,2331,233,2321,232,2312,2311,231,2301,230,2231,223,2222,2221,222,2212,2211,221,2204,2203,2202,2201,220,2131,213},
-    py311-pip{242,2412,2411,241,241b2,241b1,2400,2332,2331,233,2321,232,2312,2311,231,2301,230,2231,223,2222,2221,222},
-    py312-pip{242,2412,2411,241,241b2,241b1,2400,2332,2331,233,2321,232},
+    py38-pip{2431,243,242,2412,2411,241,241b2,241b1,2400,2332,2331,233,2321,232,2312,2311,231,2301,230,2231,223,2222,2221,222,2212,2211,221,2204,2203,2202,2201,220,2131,213,2124,2123,2122,2121,212,2113,2112,2111,211,2101,210,2034,2033,2031,203,2024,2023,2022,2021,202,201,2002,2001,1931},
+    py39-pip{2431,243,242,2412,2411,241,241b2,241b1,2400,2332,2331,233,2321,232,2312,2311,231,2301,230,2231,223,2222,2221,222,2212,2211,221,2204,2203,2202,2201,220,2131,213,2124,2123,2122,2121,212,2113,2112,2111,211,2101,210,2034,2033,2031,203},
+    py310-pip{2431,243,242,2412,2411,241,241b2,241b1,2400,2332,2331,233,2321,232,2312,2311,231,2301,230,2231,223,2222,2221,222,2212,2211,221,2204,2203,2202,2201,220,2131,213},
+    py311-pip{2431,243,242,2412,2411,241,241b2,241b1,2400,2332,2331,233,2321,232,2312,2311,231,2301,230,2231,223,2222,2221,222},
+    py312-pip{2431,243,242,2412,2411,241,241b2,241b1,2400,2332,2331,233,2321,232},
     lint
 
 [testenv]
 deps=
     pretend
     pytest
+    pip2431: pip==24.3.1
+    pip243: pip==24.3
     pip242: pip==24.2
     pip2412: pip==24.1.2
     pip2411: pip==24.1.1