diff --git a/Cargo.toml b/Cargo.toml
index 28e949b59c..291278f24d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -79,7 +79,7 @@ gif = ["dep:gif", "dep:color_quant"]
 hdr = []
 ico = ["bmp", "png"]
 jpeg = ["dep:zune-core", "dep:zune-jpeg"]
-pcx = ["dep:pcx"]
+pcx = ["dep:pcx"] # Note that the PCX dependency uses the WTFPL license
 png = ["dep:png"]
 pnm = []
 qoi = ["dep:qoi"]
diff --git a/deny.toml b/deny.toml
index 5bb4a46f3e..951f2a2fab 100644
--- a/deny.toml
+++ b/deny.toml
@@ -24,6 +24,10 @@ allow = [
     "Unicode-DFS-2016",
 ]
 
+[[licenses.exceptions]]
+allow = ["WTFPL"]
+name = "pcx"
+version = "*"
 
 [advisories]
 yanked = "deny"