diff --git a/.ruby-version b/.ruby-version
index 3f09e91..eedb52b 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.3.3
\ No newline at end of file
+3.3.6
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
index 7972171..c163a34 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,23 +9,23 @@ ADD docker/gemrc /root/.gemrc
 ADD docker/pact /usr/local/bin/pact
 
 RUN apk update \
-  && apk add ruby=3.3.3-r1 \
-             ruby-io-console=3.3.3-r1 \
+  && apk add ruby=3.3.6-r0 \
+             ruby-io-console=3.3.6-r0 \
              ca-certificates=20240705-r0 \
              libressl \
              less \
              git \
   && apk add --virtual "build-dependencies" \
              build-base=0.5-r3 \
-             ruby-dev=3.3.3-r1 \
+             ruby-dev=3.3.6-r0 \
              libressl-dev \
-             ruby-rdoc=3.3.3-r1 \
+             ruby-rdoc=3.3.6-r0 \
   && gem install bundler -v "~>2.5" \
   && bundler -v \
   && bundle config build.nokogiri --use-system-libraries \
   && bundle config git.allow_insecure true \
   && gem update --system 3.5.20 \
-  && gem install json -v "~>2.3" \
+  && gem install json -v "~>2.7.6" \
   && gem install bigdecimal -v "~>3.1" \
   && gem install racc -v "~>1.8" \
   && gem uninstall rubygems-update \
diff --git a/Gemfile.lock b/Gemfile.lock
index 9def5a9..1375684 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -10,7 +10,7 @@ PATH
   specs:
     pact-cli (1.3.0)
       bigdecimal (~> 3.1)
-      json (~> 2.3)
+      json (~> 2.7)
       pact-mock_service
       pact-provider-verifier
       pact_broker-client (~> 1.28)
@@ -42,7 +42,7 @@ GEM
       csv
       mini_mime (>= 1.0.0)
       multi_xml (>= 0.5.2)
-    json (2.7.3)
+    json (2.7.6)
     logger (1.6.1)
     method_source (1.1.0)
     mini_mime (1.1.5)
@@ -147,4 +147,4 @@ DEPENDENCIES
   rspec (~> 3.0)
 
 BUNDLED WITH
-   2.5.14
+   2.5.23
diff --git a/pact-cli.gemspec b/pact-cli.gemspec
index 7c07aa5..c58f559 100644
--- a/pact-cli.gemspec
+++ b/pact-cli.gemspec
@@ -44,7 +44,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency "pact-mock_service"
   spec.add_dependency "pact-provider-verifier"
   spec.add_dependency "pact_broker-client", "~> 1.28"
-  spec.add_dependency "json", "~>2.3" # must match native lib install in the Dockerfile
+  spec.add_dependency "json", "~>2.7" # must match native lib install in the Dockerfile
   spec.add_dependency "bigdecimal", "~>3.1" # must match native lib install in the Dockerfile
 
   # Locking this until we have given rack-test 3.0 a good shake out in pure Ruby