diff --git a/CHANGELOG b/CHANGELOG
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,7 @@
+2026-09-07
+        * Version bump (4.8.1). (#760)
+        * Replace tab in CHANGELOG. (#755)
+
 2026-07-07
         * Version bump (4.8). (#745)
 
@@ -11,7 +15,7 @@
 2026-01-07
         * Version bump (4.6.1). (#705)
         * Disable test suite via newly added manual cabal flag. (#673)
-	* Fix translation of constant floating-point values. (#696)
+        * Fix translation of constant floating-point values. (#696)
 
 2025-11-07
         * Version bump (4.6). (#679)
diff --git a/copilot-bluespec.cabal b/copilot-bluespec.cabal
--- a/copilot-bluespec.cabal
+++ b/copilot-bluespec.cabal
@@ -1,6 +1,6 @@
 cabal-version             : >= 1.10
 name                      : copilot-bluespec
-version                   : 4.8
+version                   : 4.8.1
 synopsis                  : A compiler for Copilot targeting FPGAs.
 description               :
   This package is a back-end from Copilot to FPGAs in Bluespec.
@@ -51,7 +51,7 @@
                           , ieee754           >= 0.8.0  && < 0.9
                           , pretty            >= 1.1.2  && < 1.2
 
-                          , copilot-core      >= 4.8 && < 4.9
+                          , copilot-core      >= 4.8.1 && < 4.9
                           , language-bluespec >= 0.1 && < 0.2
 
   exposed-modules         : Copilot.Compile.Bluespec