diff --git a/Project.toml b/Project.toml
index 37a74f8..a690580 100644
--- a/Project.toml
+++ b/Project.toml
@@ -21,7 +21,7 @@ Artifacts = "1"
 CoverageTools = "1"
 Downloads = "1.6.0"
 HTTP = "0.8, 0.9, 1"
-JSON = "0.21"
+JSON = "1"
 MbedTLS = "0.6, 0.7, 1"
 SHA = "0.7.0"
 Scratch = "1"
diff --git a/src/codecov_functions.jl b/src/codecov_functions.jl
index 5d0b4d4..8f5e6b5 100644
--- a/src/codecov_functions.jl
+++ b/src/codecov_functions.jl
@@ -40,7 +40,7 @@ function export_codecov_json(fcs::Vector{FileCoverage}, output_file="coverage.js
     codecov_data = to_codecov_json(fcs)
 
     open(output_file, "w") do io
-        JSON.print(io, codecov_data)
+        JSON.json(io, codecov_data)
     end
 
     @info "Codecov JSON exported to: $output_file"
diff --git a/src/codecovio.jl b/src/codecovio.jl
index c403893..6aa877a 100644
--- a/src/codecovio.jl
+++ b/src/codecovio.jl
@@ -163,7 +163,7 @@ function add_ci_to_kwargs(kwargs::Dict)
             build        = ENV["BUILD_BUILDID"],
         )
     elseif haskey(ENV, "GITHUB_ACTION") # GitHub Actions
-        event_path = open(JSON.Parser.parse, ENV["GITHUB_EVENT_PATH"])
+        event_path = open(JSON.parse, ENV["GITHUB_EVENT_PATH"])
         ref = ENV["GITHUB_REF"]
         if startswith(ref, "refs/heads/")
             branch = ref[12:end]
@@ -308,7 +308,7 @@ end
 function upload_to_s3(; s3url, fcs)
     startswith(s3url, "https://") || error("Invalid codecov response: $s3url")
     # Upload to S3
-    request = HTTP.put(s3url; body=json(to_json(fcs)),
+    request = HTTP.put(s3url; body=JSON.json(to_json(fcs)),
                        header=Dict("Content-Type" => "application/json",
                                    "x-amz-storage-class" => "REDUCED_REDUNDANCY"))
     @debug "Result of submission:" * mask_token(String(request))
diff --git a/src/coveralls.jl b/src/coveralls.jl
index 8671e4f..c2b8885 100644
--- a/src/coveralls.jl
+++ b/src/coveralls.jl
@@ -121,7 +121,7 @@ function prepare_request(fcs::Vector{FileCoverage}, local_env::Bool, git_info=qu
         data["service_name"] = "github"
         data["git"] = parse_git_info(git_info)
 
-        event_path = open(JSON.Parser.parse, ENV["GITHUB_EVENT_PATH"])
+        event_path = open(JSON.parse, ENV["GITHUB_EVENT_PATH"])
         github_pr_info = get(event_path, "pull_request", Dict())
         github_pr = get(github_pr_info, "number", "")
         github_pr::Union{AbstractString, Integer}
diff --git a/src/coveralls_functions.jl b/src/coveralls_functions.jl
index b97a6a4..50e0169 100644
--- a/src/coveralls_functions.jl
+++ b/src/coveralls_functions.jl
@@ -69,7 +69,7 @@ function export_coveralls_json(fcs::Vector{FileCoverage}, output_file="coveralls
     end
 
     open(output_file, "w") do io
-        JSON.print(io, coveralls_data)
+        JSON.json(io, coveralls_data)
     end
 
     @info "Coveralls JSON exported to: $output_file"