diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 347bdee..ee07bed 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -19,7 +19,7 @@ jobs:
       matrix:
         version:
           - '1.6'
-          - '1.8'
+          - '1.9'
           - 'nightly'
         os:
           - ubuntu-latest
diff --git a/src/parameters.jl b/src/parameters.jl
index bc6b1a4..8736d5a 100644
--- a/src/parameters.jl
+++ b/src/parameters.jl
@@ -31,14 +31,14 @@ const USUAL_CONSTRAINT_PARAMETERS = [
 
 Extracts the intersection between the `kargs` of `m` and `parameters` (defaults to `USUAL_CONSTRAINT_PARAMETERS`).
 """
-function extract_parameters(m::Method; parameters = USUAL_CONSTRAINT_PARAMETERS)
+function extract_parameters(m::Method; parameters=USUAL_CONSTRAINT_PARAMETERS)
     return intersect(Base.kwarg_decl(m), parameters)
 end
 
 function extract_parameters(
     f::F;
-    parameters = USUAL_CONSTRAINT_PARAMETERS,
-) where {F <: Function}
+    parameters=USUAL_CONSTRAINT_PARAMETERS
+) where {F<:Function}
     return filter(!isempty, map(m -> extract_parameters(m; parameters), methods(f)))
 end