diff --git a/projects/askama/build.sh b/projects/askama/build.sh
index 9422b110f866..cc27cbde619d 100755
--- a/projects/askama/build.sh
+++ b/projects/askama/build.sh
@@ -17,10 +17,6 @@
 
 set -eox pipefail
 
-pushd $SRC/askama/fuzz
-cargo update -p serde --precise 1.0.200
-popd
-
 target_out_dir=fuzz/target/x86_64-unknown-linux-gnu/release
 cargo fuzz build -O
 cargo fuzz list | while read i; do
diff --git a/projects/bson-rust/build.sh b/projects/bson-rust/build.sh
index 7bb77a32c3a0..220612b28735 100755
--- a/projects/bson-rust/build.sh
+++ b/projects/bson-rust/build.sh
@@ -15,10 +15,6 @@
 #
 ################################################################################
 
-pushd $SRC/bson-rust/fuzz
-cargo update -p serde --precise 1.0.200
-popd
-
 cargo fuzz build -O
 fuzz_release=fuzz/target/x86_64-unknown-linux-gnu/release
 cp $fuzz_release/deserialize $OUT/
diff --git a/projects/librsvg/build.sh b/projects/librsvg/build.sh
index a49a8fabbd40..1565acdf3400 100755
--- a/projects/librsvg/build.sh
+++ b/projects/librsvg/build.sh
@@ -81,12 +81,6 @@ export CXXFLAGS="${CXXFLAGS_SAVE}"
 # Compile and copy the fuzz target(s)
 cd "$SRC/librsvg/fuzz"
 
-# Pin serde because it now requires a nightly compiler that is more recent than the one on the
-# OSS-Fuzz image:
-# https://github.com/serde-rs/serde/issues/2770
-# https://github.com/google/oss-fuzz/pull/12077
-cargo update --package serde --precise 1.0.203
-
 cargo fuzz build -O
 cp target/x86_64-unknown-linux-gnu/release/render_document "$OUT/"
 
diff --git a/projects/opensk/build.sh b/projects/opensk/build.sh
index c3447b2509c1..66e51fdd2193 100755
--- a/projects/opensk/build.sh
+++ b/projects/opensk/build.sh
@@ -29,10 +29,6 @@ build_and_copy() {
 
 cd OpenSK
 
-# Temporary fix to pin serde
-pushd libraries/opensk/fuzz
-cargo update -p serde --precise 1.0.200
-popd
 # CTAP library fuzzing targets
 build_and_copy libraries/opensk
 
diff --git a/projects/ron/build.sh b/projects/ron/build.sh
index f23405c917e8..165c998c085e 100755
--- a/projects/ron/build.sh
+++ b/projects/ron/build.sh
@@ -16,10 +16,6 @@
 ################################################################################
 
 
-pushd $SRC/ron/fuzz
-cargo update -p serde --precise 1.0.200
-popd
-
 cargo fuzz build -O
 FUZZ_TARGET_OUTPUT_DIR=fuzz/target/x86_64-unknown-linux-gnu/release
 for f in fuzz/fuzz_targets/*.rs
diff --git a/projects/servo/build.sh b/projects/servo/build.sh
index 76646ce5f862..81db31b64091 100755
--- a/projects/servo/build.sh
+++ b/projects/servo/build.sh
@@ -15,9 +15,6 @@
 #
 ################################################################################
 
-cd $SRC/html5ever/html5ever/fuzz
-cargo update -p serde --precise 1.0.200
-cd ..
 cargo fuzz build -O 
 cp fuzz/target/x86_64-unknown-linux-gnu/release/fuzz_document_parse $OUT/
 
diff --git a/projects/toml_edit/build.sh b/projects/toml_edit/build.sh
index 1ac23549523e..9df8f9605f3c 100755
--- a/projects/toml_edit/build.sh
+++ b/projects/toml_edit/build.sh
@@ -15,10 +15,6 @@
 #
 ################################################################################
 
-pushd $SRC/toml_edit/crates/toml_edit_fuzz
-cargo update -p serde --precise 1.0.203
-popd
-
 cd $SRC/toml_edit
 cargo fuzz build --fuzz-dir=./crates/toml_edit_fuzz -O
 cp target/x86_64-unknown-linux-gnu/release/parse_document $OUT/