diff --git a/package/rattler-build/recipe.yaml b/package/rattler-build/recipe.yaml
index 6b52b6807f..00588983ce 100644
--- a/package/rattler-build/recipe.yaml
+++ b/package/rattler-build/recipe.yaml
@@ -102,6 +102,7 @@ requirements:
     - fmt
     - freetype
     - hdf5
+    - icu>=75,<76
     - lark
     - libboost-devel
     - matplotlib-base
diff --git a/pixi.toml b/pixi.toml
index 9bc5a7bdd5..5d33ffc770 100644
--- a/pixi.toml
+++ b/pixi.toml
@@ -25,6 +25,7 @@ freetype = "*"
 git = "*"
 graphviz = "*"
 hdf5 = "*"
+icu = ">=75,<76"
 ifcopenshell = "*"
 lark = "*"
 libboost-devel = "*"