diff --git a/lib/Cargo.toml b/lib/Cargo.toml
index b77847ac..f4d0ef55 100644
--- a/lib/Cargo.toml
+++ b/lib/Cargo.toml
@@ -37,7 +37,8 @@ rio_api = "0.5"
 rio_turtle = "0.5"
 rio_xml = "0.5"
 hex = "0.4"
-nom = "5"
+nom = "6"
+funty="=1.1.0"
 peg = "0.6"
 siphasher = "0.3"
 lasso = {version="0.4", features=["multi-threaded", "inline-more"]}
diff --git a/lib/src/model/xsd/parser.rs b/lib/src/model/xsd/parser.rs
index 2db2b6c8..3c4abd8b 100644
--- a/lib/src/model/xsd/parser.rs
+++ b/lib/src/model/xsd/parser.rs
@@ -146,7 +146,7 @@ const OVERFLOW_ERROR: XsdParseError = XsdParseError {
 };
 
 pub fn parse_value<'a, T>(
-    f: impl Fn(&'a str) -> XsdResult<'a, T>,
+    mut f: impl FnMut(&'a str) -> XsdResult<'a, T>,
     input: &'a str,
 ) -> Result<T, XsdParseError> {
     let (left, result) = f(input)?;
@@ -529,9 +529,9 @@ fn parsed_u8_range(input: &str, min: u8, max: u8) -> Result<u8, XsdParseError> {
 }
 
 fn map_res<'a, O1, O2, E2: Into<XsdParseError>>(
-    first: impl Fn(&'a str) -> XsdResult<'a, O1>,
-    second: impl Fn(O1) -> Result<O2, E2>,
-) -> impl Fn(&'a str) -> XsdResult<'a, O2> {
+    mut first: impl FnMut(&'a str) -> XsdResult<'a, O1>,
+    mut second: impl FnMut(O1) -> Result<O2, E2>,
+) -> impl FnMut(&'a str) -> XsdResult<'a, O2> {
     move |input| {
         let (input, o1) = first(input)?;
         Ok((input, second(o1).map_err(|e| Err::Error(e.into()))?))
diff --git a/lib/src/store/sophia.rs b/lib/src/store/sophia.rs
index 18f42dc6..2eb0ed04 100644
--- a/lib/src/store/sophia.rs
+++ b/lib/src/store/sophia.rs
@@ -620,7 +620,7 @@ mod rocksdb {
 }
 
 // helper functions
-
+#[allow(clippy::unnecessary_wraps)]
 fn infallible_quad_map<'a>(q: Quad) -> Result<StreamedSophiaQuad<'a>, Infallible> {
     let q: SophiaQuad = q.into();
     Ok(StreamedQuad::by_value(q))