diff --git a/Gemfile b/Gemfile
index 4a9f35020ee8..4c7455c8494b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -158,7 +158,8 @@ gem "structured_warnings", "~> 0.4.0"
 gem "airbrake", "~> 13.0.0", require: false
 
 gem "md_to_pdf", git: "https://github.com/opf/md-to-pdf", branch: :main
-gem "prawn", "~> 2.4"
+gem "prawn", "~> 2.4.0"
+gem "ttfunk", "~> 1.7.0" # remove after https://github.com/prawnpdf/prawn/issues/1346 resolved.
 # prawn implicitly depends on matrix gem no longer in ruby core with 3.1
 gem "matrix", "~> 0.4.2"
 
diff --git a/Gemfile.lock b/Gemfile.lock
index c512336857bc..8d18e14fafdd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -903,7 +903,7 @@ GEM
     parser (3.3.1.0)
       ast (~> 2.4.1)
       racc
-    pdf-core (0.10.0)
+    pdf-core (0.9.0)
     pdf-inspector (1.3.0)
       pdf-reader (>= 1.0, < 3.0.a)
     pdf-reader (2.12.0)
@@ -917,10 +917,9 @@ GEM
       activesupport (> 2.2.1)
       nokogiri (~> 1.10, >= 1.10.4)
       rubyzip (>= 1.2.0)
-    prawn (2.5.0)
-      matrix (~> 0.4)
-      pdf-core (~> 0.10.0)
-      ttfunk (~> 1.8)
+    prawn (2.4.0)
+      pdf-core (~> 0.9.0)
+      ttfunk (~> 1.7)
     prawn-table (0.2.2)
       prawn (>= 1.3.0, < 3.0.0)
     prism (0.27.0)
@@ -1211,8 +1210,7 @@ GEM
       openssl (> 2.0)
       openssl-signature_algorithm (~> 1.0)
     trailblazer-option (0.1.2)
-    ttfunk (1.8.0)
-      bigdecimal (~> 3.1)
+    ttfunk (1.7.0)
     turbo-rails (2.0.5)
       actionpack (>= 6.0.0)
       activejob (>= 6.0.0)
@@ -1429,7 +1427,7 @@ DEPENDENCIES
   pdf-inspector (~> 1.2)
   pg (~> 1.5.0)
   plaintext (~> 0.3.2)
-  prawn (~> 2.4)
+  prawn (~> 2.4.0)
   pry-byebug (~> 3.10.0)
   pry-doc
   pry-rails (~> 0.3.6)
@@ -1489,6 +1487,7 @@ DEPENDENCIES
   table_print (~> 1.5.6)
   test-prof (~> 1.3.0)
   timecop (~> 0.9.0)
+  ttfunk (~> 1.7.0)
   turbo-rails (~> 2.0.0)
   turbo_tests!
   typed_dag (~> 2.0.2)