diff --git a/crates/compiler/test_mono/generated/ir_round.txt b/crates/compiler/test_mono/generated/ir_round.txt
index b6ff98e931..85ed4831dc 100644
--- a/crates/compiler/test_mono/generated/ir_round.txt
+++ b/crates/compiler/test_mono/generated/ir_round.txt
@@ -3,6 +3,6 @@ procedure Num.45 (#Attr.2):
     ret Num.292;
 
 procedure Test.0 ():
-    let Test.2 : Float64 = 3.6f64;
+    let Test.2 : Decimal = 3.6dec;
     let Test.1 : I64 = CallByName Num.45 Test.2;
     ret Test.1;
diff --git a/crates/compiler/test_mono/generated/ir_when_record.txt b/crates/compiler/test_mono/generated/ir_when_record.txt
index bbac521770..42625be615 100644
--- a/crates/compiler/test_mono/generated/ir_when_record.txt
+++ b/crates/compiler/test_mono/generated/ir_when_record.txt
@@ -1,6 +1,6 @@
 procedure Test.0 ():
-    let Test.4 : I64 = 1i64;
-    let Test.5 : Float64 = 3.14f64;
-    let Test.2 : {I64, Float64} = Struct {Test.4, Test.5};
-    let Test.1 : I64 = StructAtIndex 0 Test.2;
+    let Test.4 : Decimal = 3.14dec;
+    let Test.5 : I64 = 1i64;
+    let Test.2 : {Decimal, I64} = Struct {Test.4, Test.5};
+    let Test.1 : I64 = StructAtIndex 1 Test.2;
     ret Test.1;
diff --git a/crates/compiler/test_mono/generated/let_with_record_pattern.txt b/crates/compiler/test_mono/generated/let_with_record_pattern.txt
index 58abbb1866..de6257273d 100644
--- a/crates/compiler/test_mono/generated/let_with_record_pattern.txt
+++ b/crates/compiler/test_mono/generated/let_with_record_pattern.txt
@@ -1,6 +1,6 @@
 procedure Test.0 ():
-    let Test.4 : I64 = 2i64;
-    let Test.5 : Float64 = 3.14f64;
-    let Test.3 : {I64, Float64} = Struct {Test.4, Test.5};
-    let Test.1 : I64 = StructAtIndex 0 Test.3;
+    let Test.4 : Decimal = 3.14dec;
+    let Test.5 : I64 = 2i64;
+    let Test.3 : {Decimal, I64} = Struct {Test.4, Test.5};
+    let Test.1 : I64 = StructAtIndex 1 Test.3;
     ret Test.1;
diff --git a/crates/compiler/test_mono/generated/let_with_record_pattern_list.txt b/crates/compiler/test_mono/generated/let_with_record_pattern_list.txt
index c695452fb2..64de14283e 100644
--- a/crates/compiler/test_mono/generated/let_with_record_pattern_list.txt
+++ b/crates/compiler/test_mono/generated/let_with_record_pattern_list.txt
@@ -1,6 +1,6 @@
 procedure Test.0 ():
-    let Test.4 : List I64 = Array [1i64, 3i64, 4i64];
-    let Test.5 : Float64 = 3.14f64;
-    let Test.3 : {List I64, Float64} = Struct {Test.4, Test.5};
-    let Test.1 : List I64 = StructAtIndex 0 Test.3;
+    let Test.4 : Decimal = 3.14dec;
+    let Test.5 : List I64 = Array [1i64, 3i64, 4i64];
+    let Test.3 : {Decimal, List I64} = Struct {Test.4, Test.5};
+    let Test.1 : List I64 = StructAtIndex 1 Test.3;
     ret Test.1;
diff --git a/crates/compiler/test_mono/generated/list_len.txt b/crates/compiler/test_mono/generated/list_len.txt
index 62da03f9c8..f52c16f756 100644
--- a/crates/compiler/test_mono/generated/list_len.txt
+++ b/crates/compiler/test_mono/generated/list_len.txt
@@ -12,7 +12,7 @@ procedure Num.19 (#Attr.2, #Attr.3):
 
 procedure Test.0 ():
     let Test.1 : List I64 = Array [1i64, 2i64, 3i64];
-    let Test.2 : List Float64 = Array [1f64];
+    let Test.2 : List Decimal = Array [1.dec];
     let Test.4 : U64 = CallByName List.6 Test.1;
     dec Test.1;
     let Test.5 : U64 = CallByName List.6 Test.2;
diff --git a/crates/compiler/test_mono/generated/num_width_gt_u8_layout_as_float.txt b/crates/compiler/test_mono/generated/num_width_gt_u8_layout_as_float.txt
index 165b0057ce..c180a13419 100644
--- a/crates/compiler/test_mono/generated/num_width_gt_u8_layout_as_float.txt
+++ b/crates/compiler/test_mono/generated/num_width_gt_u8_layout_as_float.txt
@@ -1,9 +1,9 @@
 procedure Num.37 (#Attr.2, #Attr.3):
-    let Num.292 : Float64 = lowlevel NumDivFrac #Attr.2 #Attr.3;
+    let Num.292 : Decimal = lowlevel NumDivFrac #Attr.2 #Attr.3;
     ret Num.292;
 
 procedure Test.0 ():
-    let Test.2 : Float64 = 1f64;
-    let Test.3 : Float64 = 200f64;
-    let Test.1 : Float64 = CallByName Num.37 Test.2 Test.3;
+    let Test.2 : Decimal = 1.dec;
+    let Test.3 : Decimal = 200dec;
+    let Test.1 : Decimal = CallByName Num.37 Test.2 Test.3;
     ret Test.1;