diff --git a/CHANGELOG b/CHANGELOG
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,6 @@
+2026-05-07
+        * Version bump (4.7.1). (#730)
+
 2026-03-07
         * Version bump (4.7). (#714)
         * Raise error when compiling empty arrays or structs. (#695)
diff --git a/copilot-c99.cabal b/copilot-c99.cabal
--- a/copilot-c99.cabal
+++ b/copilot-c99.cabal
@@ -1,6 +1,6 @@
 cabal-version             : >= 1.10
 name                      : copilot-c99
-version                   : 4.7
+version                   : 4.7.1
 synopsis                  : A compiler for Copilot targeting C99.
 description               :
   This package is a back-end from Copilot to C.
@@ -45,7 +45,7 @@
                           , mtl                 >= 2.2 && < 2.4
                           , pretty              >= 1.1 && < 1.2
 
-                          , copilot-core        >= 4.7   && < 4.8
+                          , copilot-core        >= 4.7.1 && < 4.8
                           , language-c99        >= 0.2.0 && < 0.3
                           , language-c99-simple >= 0.3   && < 0.4